diff --git a/core/pom.xml b/core/pom.xml
index 398493a..d11af4b 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ai.authplane.sdk</groupId>
     <artifactId>authplane-parent</artifactId>
-    <version>0.2.1-SNAPSHOT</version>
+    <version>0.4.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/mcp/demo/pom.xml b/mcp/demo/pom.xml
index a651d8b..985f855 100644
--- a/mcp/demo/pom.xml
+++ b/mcp/demo/pom.xml
@@ -21,7 +21,7 @@
     <maven.compiler.release>21</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <!-- Bumped by the cut-release workflow alongside the default branch's SNAPSHOT version. -->
-    <authplane.sdk.version>0.2.1-SNAPSHOT</authplane.sdk.version>
+    <authplane.sdk.version>0.4.0-SNAPSHOT</authplane.sdk.version>
   </properties>
 
   <dependencies>
diff --git a/mcp/pom.xml b/mcp/pom.xml
index c2fb087..1aebf18 100644
--- a/mcp/pom.xml
+++ b/mcp/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ai.authplane.sdk</groupId>
     <artifactId>authplane-parent</artifactId>
-    <version>0.2.1-SNAPSHOT</version>
+    <version>0.4.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/pom.xml b/pom.xml
index 863c4cc..ad69179 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>ai.authplane.sdk</groupId>
   <artifactId>authplane-parent</artifactId>
-  <version>0.2.1-SNAPSHOT</version>
+  <version>0.4.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Authplane Java SDK (parent)</name>
diff --git a/spring/demo/pom.xml b/spring/demo/pom.xml
index be161d4..3704af0 100644
--- a/spring/demo/pom.xml
+++ b/spring/demo/pom.xml
@@ -27,7 +27,7 @@
 
   <properties>
     <!-- Bumped by the cut-release workflow alongside the default branch's SNAPSHOT version. -->
-    <authplane.sdk.version>0.2.1-SNAPSHOT</authplane.sdk.version>
+    <authplane.sdk.version>0.4.0-SNAPSHOT</authplane.sdk.version>
   </properties>
 
   <dependencyManagement>
diff --git a/spring/pom.xml b/spring/pom.xml
index 06c8bba..c97e9fb 100644
--- a/spring/pom.xml
+++ b/spring/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>ai.authplane.sdk</groupId>
     <artifactId>authplane-parent</artifactId>
-    <version>0.2.1-SNAPSHOT</version>
+    <version>0.4.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>