diff --git a/bookkeeper-benchmark/pom.xml b/bookkeeper-benchmark/pom.xml
index 15325bc..9d1f868 100644
--- a/bookkeeper-benchmark/pom.xml
+++ b/bookkeeper-benchmark/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>bookkeeper</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <groupId>org.apache.bookkeeper</groupId>
   <artifactId>bookkeeper-benchmark</artifactId>
diff --git a/bookkeeper-common-allocator/pom.xml b/bookkeeper-common-allocator/pom.xml
index 560d4e9..dcacd16 100644
--- a/bookkeeper-common-allocator/pom.xml
+++ b/bookkeeper-common-allocator/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>bookkeeper</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-common-allocator</artifactId>
   <name>Apache BookKeeper :: Common :: Allocator</name>
diff --git a/bookkeeper-common/pom.xml b/bookkeeper-common/pom.xml
index d5887fb..77a2eca 100644
--- a/bookkeeper-common/pom.xml
+++ b/bookkeeper-common/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>bookkeeper</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-common</artifactId>
   <name>Apache BookKeeper :: Common</name>
diff --git a/bookkeeper-dist/all/pom.xml b/bookkeeper-dist/all/pom.xml
index 4099de9..fc22ce6 100644
--- a/bookkeeper-dist/all/pom.xml
+++ b/bookkeeper-dist/all/pom.xml
@@ -23,7 +23,7 @@
   <parent>
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     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/bookkeeper-dist/bkctl/pom.xml b/bookkeeper-dist/bkctl/pom.xml
index 90ac367..b12f5cb 100644
--- a/bookkeeper-dist/bkctl/pom.xml
+++ b/bookkeeper-dist/bkctl/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>bookkeeper-dist</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
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     <relativePath>..</relativePath>
   </parent>
 
diff --git a/bookkeeper-dist/pom.xml b/bookkeeper-dist/pom.xml
index 49d79f0..461763b 100644
--- a/bookkeeper-dist/pom.xml
+++ b/bookkeeper-dist/pom.xml
@@ -19,7 +19,7 @@
   <parent>
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     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
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   <modelVersion>4.0.0</modelVersion>
   <artifactId>bookkeeper-dist</artifactId>
diff --git a/bookkeeper-dist/server/pom.xml b/bookkeeper-dist/server/pom.xml
index f325afc..06f6b17 100644
--- a/bookkeeper-dist/server/pom.xml
+++ b/bookkeeper-dist/server/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>bookkeeper-dist</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/bookkeeper-http/http-server/pom.xml b/bookkeeper-http/http-server/pom.xml
index b6e325b..82bacee 100644
--- a/bookkeeper-http/http-server/pom.xml
+++ b/bookkeeper-http/http-server/pom.xml
@@ -19,7 +19,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   <modelVersion>4.0.0</modelVersion>
diff --git a/bookkeeper-http/pom.xml b/bookkeeper-http/pom.xml
index 122d8f5..70fad86 100644
--- a/bookkeeper-http/pom.xml
+++ b/bookkeeper-http/pom.xml
@@ -19,7 +19,7 @@
   <parent>
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     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.bookkeeper.http</groupId>
diff --git a/bookkeeper-http/twitter-http-server/pom.xml b/bookkeeper-http/twitter-http-server/pom.xml
index 33adfa8..4f283d5 100644
--- a/bookkeeper-http/twitter-http-server/pom.xml
+++ b/bookkeeper-http/twitter-http-server/pom.xml
@@ -19,7 +19,7 @@
   <parent>
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     <groupId>org.apache.bookkeeper</groupId>
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   <modelVersion>4.0.0</modelVersion>
diff --git a/bookkeeper-http/vertx-http-server/pom.xml b/bookkeeper-http/vertx-http-server/pom.xml
index d10eb52..1a4492f 100644
--- a/bookkeeper-http/vertx-http-server/pom.xml
+++ b/bookkeeper-http/vertx-http-server/pom.xml
@@ -19,7 +19,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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diff --git a/bookkeeper-proto/pom.xml b/bookkeeper-proto/pom.xml
index fe3d7bf..2a53dfa 100644
--- a/bookkeeper-proto/pom.xml
+++ b/bookkeeper-proto/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   </parent>
   <artifactId>bookkeeper-proto</artifactId>
   <name>Apache BookKeeper :: Protocols</name>
diff --git a/bookkeeper-server/pom.xml b/bookkeeper-server/pom.xml
index a4e7aa7..1b6419d 100644
--- a/bookkeeper-server/pom.xml
+++ b/bookkeeper-server/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   </parent>
   <artifactId>bookkeeper-server</artifactId>
   <name>Apache BookKeeper :: Server</name>
diff --git a/bookkeeper-stats-providers/codahale-metrics-provider/pom.xml b/bookkeeper-stats-providers/codahale-metrics-provider/pom.xml
index 35fb032..b8de4f8 100644
--- a/bookkeeper-stats-providers/codahale-metrics-provider/pom.xml
+++ b/bookkeeper-stats-providers/codahale-metrics-provider/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   </parent>
   <groupId>org.apache.bookkeeper.stats</groupId>
diff --git a/bookkeeper-stats-providers/pom.xml b/bookkeeper-stats-providers/pom.xml
index 557e0ad..0be8268 100644
--- a/bookkeeper-stats-providers/pom.xml
+++ b/bookkeeper-stats-providers/pom.xml
@@ -19,7 +19,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   <modelVersion>4.0.0</modelVersion>
   <artifactId>bookkeeper-stats-providers</artifactId>
diff --git a/bookkeeper-stats-providers/prometheus-metrics-provider/pom.xml b/bookkeeper-stats-providers/prometheus-metrics-provider/pom.xml
index 97d65d5..f6f5156 100644
--- a/bookkeeper-stats-providers/prometheus-metrics-provider/pom.xml
+++ b/bookkeeper-stats-providers/prometheus-metrics-provider/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   <groupId>org.apache.bookkeeper.stats</groupId>
diff --git a/bookkeeper-stats-providers/twitter-finagle-provider/pom.xml b/bookkeeper-stats-providers/twitter-finagle-provider/pom.xml
index 6b984a1..39cc178 100644
--- a/bookkeeper-stats-providers/twitter-finagle-provider/pom.xml
+++ b/bookkeeper-stats-providers/twitter-finagle-provider/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>bookkeeper</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
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   <groupId>org.apache.bookkeeper.stats</groupId>
diff --git a/bookkeeper-stats-providers/twitter-ostrich-provider/pom.xml b/bookkeeper-stats-providers/twitter-ostrich-provider/pom.xml
index d603ef8..3a6ad8a 100644
--- a/bookkeeper-stats-providers/twitter-ostrich-provider/pom.xml
+++ b/bookkeeper-stats-providers/twitter-ostrich-provider/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   <groupId>org.apache.bookkeeper.stats</groupId>
diff --git a/bookkeeper-stats-providers/twitter-science-provider/pom.xml b/bookkeeper-stats-providers/twitter-science-provider/pom.xml
index e965f83..d7ceb32 100644
--- a/bookkeeper-stats-providers/twitter-science-provider/pom.xml
+++ b/bookkeeper-stats-providers/twitter-science-provider/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
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   <groupId>org.apache.bookkeeper.stats</groupId>
diff --git a/bookkeeper-stats/pom.xml b/bookkeeper-stats/pom.xml
index 49f6523..d45264e 100644
--- a/bookkeeper-stats/pom.xml
+++ b/bookkeeper-stats/pom.xml
@@ -20,7 +20,7 @@
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     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
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   <groupId>org.apache.bookkeeper.stats</groupId>
   <artifactId>bookkeeper-stats-api</artifactId>
diff --git a/buildtools/pom.xml b/buildtools/pom.xml
index 4e1e529..9163ccc 100644
--- a/buildtools/pom.xml
+++ b/buildtools/pom.xml
@@ -20,9 +20,9 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>bookkeeper</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>buildtools</artifactId>
   <name>Apache BookKeeper :: Build Tools</name>
-  <version>4.9.1-SNAPSHOT</version>
+  <version>4.9.1</version>
 </project>
diff --git a/circe-checksum/pom.xml b/circe-checksum/pom.xml
index 0eebb9a..ca271a0 100644
--- a/circe-checksum/pom.xml
+++ b/circe-checksum/pom.xml
@@ -24,7 +24,7 @@
   <parent>
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     <artifactId>bookkeeper</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/cpu-affinity/pom.xml b/cpu-affinity/pom.xml
index c06fad8..8df1f77 100644
--- a/cpu-affinity/pom.xml
+++ b/cpu-affinity/pom.xml
@@ -19,7 +19,7 @@
   <parent>
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     <artifactId>bookkeeper</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/metadata-drivers/etcd/pom.xml b/metadata-drivers/etcd/pom.xml
index bb54d04..65c8845 100644
--- a/metadata-drivers/etcd/pom.xml
+++ b/metadata-drivers/etcd/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.bookkeeper.metadata.drivers</groupId>
     <artifactId>metadata-drivers-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
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   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/metadata-drivers/pom.xml b/metadata-drivers/pom.xml
index 9de5b0c..27d29f8 100644
--- a/metadata-drivers/pom.xml
+++ b/metadata-drivers/pom.xml
@@ -19,7 +19,7 @@
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         <artifactId>bookkeeper</artifactId>
         <groupId>org.apache.bookkeeper</groupId>
-        <version>4.9.1-SNAPSHOT</version>
+        <version>4.9.1</version>
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     <modelVersion>4.0.0</modelVersion>
     <groupId>org.apache.bookkeeper.metadata.drivers</groupId>
diff --git a/microbenchmarks/pom.xml b/microbenchmarks/pom.xml
index 8d3065e..f8f6149 100644
--- a/microbenchmarks/pom.xml
+++ b/microbenchmarks/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>bookkeeper</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>microbenchmarks</artifactId>
   <name>Apache BookKeeper :: microbenchmarks</name>
diff --git a/pom.xml b/pom.xml
index 84d3a30..815dbb7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
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   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.bookkeeper</groupId>
-  <version>4.9.1-SNAPSHOT</version>
+  <version>4.9.1</version>
   <artifactId>bookkeeper</artifactId>
   <packaging>pom</packaging>
   <name>Apache BookKeeper :: Parent</name>
@@ -40,7 +40,7 @@
     <connection>scm:git:https://github.com/apache/bookkeeper.git</connection>
     <developerConnection>scm:git:https://github.com/apache/bookkeeper.git</developerConnection>
     <url>https://github.com/apache/bookkeeper</url>
-    <tag>branch-4.9</tag>
+    <tag>v4.9.1-rc0</tag>
   </scm>
   <issueManagement>
     <system>JIRA</system>
diff --git a/shaded/bookkeeper-server-shaded/pom.xml b/shaded/bookkeeper-server-shaded/pom.xml
index d0557fa..6600d1e 100644
--- a/shaded/bookkeeper-server-shaded/pom.xml
+++ b/shaded/bookkeeper-server-shaded/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>shaded-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
   <artifactId>bookkeeper-server-shaded</artifactId>
diff --git a/shaded/bookkeeper-server-tests-shaded/pom.xml b/shaded/bookkeeper-server-tests-shaded/pom.xml
index 08860ab..a26e960 100644
--- a/shaded/bookkeeper-server-tests-shaded/pom.xml
+++ b/shaded/bookkeeper-server-tests-shaded/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>shaded-parent</artifactId>
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   <artifactId>bookkeeper-server-tests-shaded</artifactId>
diff --git a/shaded/distributedlog-core-shaded/pom.xml b/shaded/distributedlog-core-shaded/pom.xml
index 1eca662..9fd9a7f 100644
--- a/shaded/distributedlog-core-shaded/pom.xml
+++ b/shaded/distributedlog-core-shaded/pom.xml
@@ -20,7 +20,7 @@
   <parent>
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   </parent>
   <groupId>org.apache.distributedlog</groupId>
diff --git a/shaded/pom.xml b/shaded/pom.xml
index fe5fe0d..58fe9b1 100644
--- a/shaded/pom.xml
+++ b/shaded/pom.xml
@@ -21,7 +21,7 @@
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   <artifactId>shaded-parent</artifactId>
diff --git a/stats/pom.xml b/stats/pom.xml
index 20477e9..12fb7e3 100644
--- a/stats/pom.xml
+++ b/stats/pom.xml
@@ -22,7 +22,7 @@
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   <packaging>pom</packaging>
diff --git a/stats/utils/pom.xml b/stats/utils/pom.xml
index d962c0c..137c87d 100644
--- a/stats/utils/pom.xml
+++ b/stats/utils/pom.xml
@@ -22,7 +22,7 @@
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     <groupId>org.apache.bookkeeper.stats</groupId>
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   <groupId>org.apache.bookkeeper.stats</groupId>
diff --git a/stream/api/pom.xml b/stream/api/pom.xml
index 1011b63..ce6a6d9 100644
--- a/stream/api/pom.xml
+++ b/stream/api/pom.xml
@@ -20,7 +20,7 @@
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     <artifactId>stream-storage-parent</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
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   </parent>
   <groupId>org.apache.bookkeeper</groupId>
diff --git a/stream/bk-grpc-name-resolver/pom.xml b/stream/bk-grpc-name-resolver/pom.xml
index 7c5ff4a..a064831 100644
--- a/stream/bk-grpc-name-resolver/pom.xml
+++ b/stream/bk-grpc-name-resolver/pom.xml
@@ -22,7 +22,7 @@
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diff --git a/stream/clients/java/all/pom.xml b/stream/clients/java/all/pom.xml
index 7734bcd..69ae13f 100644
--- a/stream/clients/java/all/pom.xml
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@@ -20,7 +20,7 @@
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   <artifactId>stream-storage-java-client</artifactId>
   <name>Apache BookKeeper :: Stream Storage :: Clients :: Java Client </name>
diff --git a/stream/clients/java/base/pom.xml b/stream/clients/java/base/pom.xml
index 2916747..01ca992 100644
--- a/stream/clients/java/base/pom.xml
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@@ -20,7 +20,7 @@
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   <artifactId>stream-storage-java-client-base</artifactId>
   <name>Apache BookKeeper :: Stream Storage :: Clients :: Java Client :: Base</name>
diff --git a/stream/clients/java/kv/pom.xml b/stream/clients/java/kv/pom.xml
index 967b9e6..8f0b649 100644
--- a/stream/clients/java/kv/pom.xml
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@@ -20,7 +20,7 @@
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   <name>Apache BookKeeper :: Stream Storage :: Clients :: Java Client :: KV</name>
diff --git a/stream/clients/java/pom.xml b/stream/clients/java/pom.xml
index 6b12ebf..d89f02e 100644
--- a/stream/clients/java/pom.xml
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diff --git a/stream/clients/pom.xml b/stream/clients/pom.xml
index 460012f..586d2f4 100644
--- a/stream/clients/pom.xml
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diff --git a/stream/common/pom.xml b/stream/common/pom.xml
index 4f1ccba..29de19f 100644
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-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
   <artifactId>distributedlog-core-shaded-test</artifactId>
diff --git a/tests/shaded/pom.xml b/tests/shaded/pom.xml
index 63f4b10..a208204 100644
--- a/tests/shaded/pom.xml
+++ b/tests/shaded/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.bookkeeper.tests</groupId>
     <artifactId>tests-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
     <relativePath>..</relativePath>
   </parent>
   <groupId>org.apache.bookkeeper.tests.shaded</groupId>
diff --git a/tools/all/pom.xml b/tools/all/pom.xml
index 289abc8..e2a4769 100644
--- a/tools/all/pom.xml
+++ b/tools/all/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>bookkeeper-tools-parent</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-tools</artifactId>
   <name>Apache BookKeeper :: Tools</name>
diff --git a/tools/framework/pom.xml b/tools/framework/pom.xml
index 09f67e3..aafdf1d 100644
--- a/tools/framework/pom.xml
+++ b/tools/framework/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>bookkeeper-tools-parent</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-tools-framework</artifactId>
   <name>Apache BookKeeper :: Tools :: Framework</name>
diff --git a/tools/ledger/pom.xml b/tools/ledger/pom.xml
index 4ce2e6c..e7cfdee 100644
--- a/tools/ledger/pom.xml
+++ b/tools/ledger/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>bookkeeper-tools-parent</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-tools-ledger</artifactId>
   <name>Apache BookKeeper :: Tools :: Ledger</name>
diff --git a/tools/perf/pom.xml b/tools/perf/pom.xml
index d75dfe3..88cca65 100644
--- a/tools/perf/pom.xml
+++ b/tools/perf/pom.xml
@@ -17,7 +17,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>bookkeeper-tools-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-perf</artifactId>
   <name>Apache BookKeeper :: Tools :: Perf</name>
diff --git a/tools/pom.xml b/tools/pom.xml
index b790f2f..d1b4a0b 100644
--- a/tools/pom.xml
+++ b/tools/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>bookkeeper</artifactId>
     <groupId>org.apache.bookkeeper</groupId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>bookkeeper-tools-parent</artifactId>
   <name>Apache BookKeeper :: Tools :: Parent</name>
diff --git a/tools/stream/pom.xml b/tools/stream/pom.xml
index 43e84ec..25b2027 100644
--- a/tools/stream/pom.xml
+++ b/tools/stream/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.bookkeeper</groupId>
     <artifactId>bookkeeper-tools-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version>
+    <version>4.9.1</version>
   </parent>
   <artifactId>stream-storage-cli</artifactId>
   <name>Apache BookKeeper :: Tools :: Stream</name>