diff --git a/pom.xml b/pom.xml
index 74ee23e1f..24c022879 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
     <groupId>io.wren</groupId>
     <artifactId>wren-root</artifactId>
-    <version>0.3.4-SNAPSHOT</version>
+    <version>0.4.0</version>
     <packaging>pom</packaging>
 
     <name>WrenEngine</name>
@@ -38,7 +38,7 @@
     </modules>
 
     <scm>
-        <tag>HEAD</tag>
+        <tag>0.4.0</tag>
     </scm>
 
     <distributionManagement>
diff --git a/trino-parser/pom.xml b/trino-parser/pom.xml
index 7521e8e60..6c417dd1c 100644
--- a/trino-parser/pom.xml
+++ b/trino-parser/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-base/pom.xml b/wren-base/pom.xml
index a1ce07715..722276957 100644
--- a/wren-base/pom.xml
+++ b/wren-base/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-cache/pom.xml b/wren-cache/pom.xml
index 2d0b0b2eb..981265e76 100644
--- a/wren-cache/pom.xml
+++ b/wren-cache/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-main/pom.xml b/wren-main/pom.xml
index 1450d1616..887de7fed 100644
--- a/wren-main/pom.xml
+++ b/wren-main/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-server/pom.xml b/wren-server/pom.xml
index 323f67b09..6f7e2d2cd 100644
--- a/wren-server/pom.xml
+++ b/wren-server/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-shaded/pom.xml b/wren-shaded/pom.xml
index 4d7b68473..865be6e82 100644
--- a/wren-shaded/pom.xml
+++ b/wren-shaded/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-testing/pom.xml b/wren-testing/pom.xml
index 8d2a6dc58..042f716cd 100644
--- a/wren-testing/pom.xml
+++ b/wren-testing/pom.xml
@@ -17,7 +17,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/wren-tests/pom.xml b/wren-tests/pom.xml
index 4de6521b5..e14cb856a 100644
--- a/wren-tests/pom.xml
+++ b/wren-tests/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>io.wren</groupId>
         <artifactId>wren-root</artifactId>
-        <version>0.3.4-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>