diff --git a/httpcore5-h2/pom.xml b/httpcore5-h2/pom.xml
index 775b6ab..48ec8a2 100644
--- a/httpcore5-h2/pom.xml
+++ b/httpcore5-h2/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.apache.httpcomponents.core5</groupId>
     <artifactId>httpcore5-parent</artifactId>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1</version>
   </parent>
   <artifactId>httpcore5-h2</artifactId>
   <name>Apache HttpComponents Core HTTP/2</name>
diff --git a/httpcore5-reactive/pom.xml b/httpcore5-reactive/pom.xml
index 14a4d23..3e18a89 100644
--- a/httpcore5-reactive/pom.xml
+++ b/httpcore5-reactive/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <artifactId>httpcore5-parent</artifactId>
     <groupId>org.apache.httpcomponents.core5</groupId>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/httpcore5-testing/pom.xml b/httpcore5-testing/pom.xml
index 30687be..6ab707c 100644
--- a/httpcore5-testing/pom.xml
+++ b/httpcore5-testing/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.apache.httpcomponents.core5</groupId>
     <artifactId>httpcore5-parent</artifactId>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1</version>
   </parent>
   <artifactId>httpcore5-testing</artifactId>
   <name>Apache HttpComponents Core Integration Tests</name>
diff --git a/httpcore5/pom.xml b/httpcore5/pom.xml
index fb69920..c61fa9b 100644
--- a/httpcore5/pom.xml
+++ b/httpcore5/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.apache.httpcomponents.core5</groupId>
     <artifactId>httpcore5-parent</artifactId>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1</version>
   </parent>
   <artifactId>httpcore5</artifactId>
   <name>Apache HttpComponents Core HTTP/1.1</name>
diff --git a/pom.xml b/pom.xml
index 1fbf1f7..6cb64fb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
   <groupId>org.apache.httpcomponents.core5</groupId>
   <artifactId>httpcore5-parent</artifactId>
   <name>Apache HttpComponents Core Parent</name>
-  <version>5.1.1-SNAPSHOT</version>
+  <version>5.1.1</version>
   <description>Apache HttpComponents Core is a library of components for building HTTP enabled services</description>
   <url>https://hc.apache.org/httpcomponents-core-5.1.x/${project.version}/</url>
   <inceptionYear>2005</inceptionYear>
@@ -48,7 +48,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/httpcomponents-core.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/httpcomponents-core.git</developerConnection>
     <url>https://github.com/apache/httpcomponents-core/tree/${project.scm.tag}</url>
-    <tag>5.1.1-SNAPSHOT</tag>
+    <tag>5.1.1</tag>
   </scm>
 
   <distributionManagement>