diff --git a/VERSION b/VERSION
index de48d0f..910744d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.5.2-incubating-SNAPSHOT
+0.5.2-incubating
diff --git a/core/src/main/java/hivemall/HivemallConstants.java b/core/src/main/java/hivemall/HivemallConstants.java
index 9b8de2d..61e2cd4 100644
--- a/core/src/main/java/hivemall/HivemallConstants.java
+++ b/core/src/main/java/hivemall/HivemallConstants.java
@@ -20,7 +20,7 @@
 
 public final class HivemallConstants {
 
-    public static final String VERSION = "0.5.2-incubating-SNAPSHOT";
+    public static final String VERSION = "0.5.2-incubating";
 
     public static final String BIAS_CLAUSE = "0";
     public static final int BIAS_CLAUSE_HASHVAL = 0;
diff --git a/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala b/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
index 007aedf..91ce116 100644
--- a/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
+++ b/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
@@ -35,7 +35,7 @@
 
     checkAnswer(
       sql(s"SELECT DISTINCT hivemall_version()"),
-      Row("0.5.2-incubating-SNAPSHOT")
+      Row("0.5.2-incubating")
     )
 
     // sql("DROP TEMPORARY FUNCTION IF EXISTS hivemall_version")
diff --git a/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala b/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
index c5227aa..8ca170f 100644
--- a/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
+++ b/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
@@ -295,7 +295,7 @@
   }
 
   test("misc - hivemall_version") {
-    checkAnswer(DummyInputData.select(hivemall_version()), Row("0.5.2-incubating-SNAPSHOT"))
+    checkAnswer(DummyInputData.select(hivemall_version()), Row("0.5.2-incubating"))
   }
 
   test("misc - rowid") {
diff --git a/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala b/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
index 6423004..2841457 100644
--- a/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
+++ b/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
@@ -36,7 +36,7 @@
 
     checkAnswer(
       sql(s"SELECT DISTINCT hivemall_version()"),
-      Row("0.5.2-incubating-SNAPSHOT")
+      Row("0.5.2-incubating")
     )
 
     // sql("DROP TEMPORARY FUNCTION IF EXISTS hivemall_version")
diff --git a/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala b/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
index b16a120..51fcfd0 100644
--- a/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
+++ b/spark/spark-2.2/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
@@ -562,7 +562,7 @@
   }
 
   test("misc - hivemall_version") {
-    checkAnswer(DummyInputData.select(hivemall_version()), Row("0.5.2-incubating-SNAPSHOT"))
+    checkAnswer(DummyInputData.select(hivemall_version()), Row("0.5.2-incubating"))
   }
 
   test("misc - rowid") {
diff --git a/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala b/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
index 6423004..2841457 100644
--- a/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
+++ b/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HiveUdfSuite.scala
@@ -36,7 +36,7 @@
 
     checkAnswer(
       sql(s"SELECT DISTINCT hivemall_version()"),
-      Row("0.5.2-incubating-SNAPSHOT")
+      Row("0.5.2-incubating")
     )
 
     // sql("DROP TEMPORARY FUNCTION IF EXISTS hivemall_version")
diff --git a/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala b/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
index c05427b..34e80e7 100644
--- a/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
+++ b/spark/spark-2.3/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
@@ -563,7 +563,7 @@
   }
 
   test("misc - hivemall_version") {
-    checkAnswer(DummyInputData.select(hivemall_version()), Row("0.5.2-incubating-SNAPSHOT"))
+    checkAnswer(DummyInputData.select(hivemall_version()), Row("0.5.2-incubating"))
   }
 
   test("misc - rowid") {