diff --git a/maven-plugin-annotations/pom.xml b/maven-plugin-annotations/pom.xml
index 37f4bbc3..a81ea6ad 100644
--- a/maven-plugin-annotations/pom.xml
+++ b/maven-plugin-annotations/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-annotations</artifactId>
diff --git a/maven-plugin-plugin/pom.xml b/maven-plugin-plugin/pom.xml
index 507d1d2e..ac57324c 100644
--- a/maven-plugin-plugin/pom.xml
+++ b/maven-plugin-plugin/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <groupId>org.apache.maven.plugins</groupId>
diff --git a/maven-plugin-report-plugin/pom.xml b/maven-plugin-report-plugin/pom.xml
index b2d68007..1a455f21 100644
--- a/maven-plugin-report-plugin/pom.xml
+++ b/maven-plugin-report-plugin/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <groupId>org.apache.maven.plugins</groupId>
diff --git a/maven-plugin-tools-annotations/pom.xml b/maven-plugin-tools-annotations/pom.xml
index b61b1b4b..6a6e9db1 100644
--- a/maven-plugin-tools-annotations/pom.xml
+++ b/maven-plugin-tools-annotations/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-annotations</artifactId>
diff --git a/maven-plugin-tools-api/pom.xml b/maven-plugin-tools-api/pom.xml
index 160b776e..3a66f3cf 100644
--- a/maven-plugin-tools-api/pom.xml
+++ b/maven-plugin-tools-api/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-api</artifactId>
diff --git a/maven-plugin-tools-generators/pom.xml b/maven-plugin-tools-generators/pom.xml
index 1ee4ed1a..381a6baf 100644
--- a/maven-plugin-tools-generators/pom.xml
+++ b/maven-plugin-tools-generators/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-generators</artifactId>
diff --git a/maven-plugin-tools-java/pom.xml b/maven-plugin-tools-java/pom.xml
index 464fe533..4b744fe1 100644
--- a/maven-plugin-tools-java/pom.xml
+++ b/maven-plugin-tools-java/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-java</artifactId>
diff --git a/maven-script/maven-plugin-tools-ant/pom.xml b/maven-script/maven-plugin-tools-ant/pom.xml
index 3d964d6e..c13130f5 100644
--- a/maven-script/maven-plugin-tools-ant/pom.xml
+++ b/maven-script/maven-plugin-tools-ant/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-ant</artifactId>
diff --git a/maven-script/maven-plugin-tools-beanshell/pom.xml b/maven-script/maven-plugin-tools-beanshell/pom.xml
index 21878108..145fb036 100644
--- a/maven-script/maven-plugin-tools-beanshell/pom.xml
+++ b/maven-script/maven-plugin-tools-beanshell/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-beanshell</artifactId>
diff --git a/maven-script/maven-plugin-tools-model/pom.xml b/maven-script/maven-plugin-tools-model/pom.xml
index 851906a6..b9a38c76 100644
--- a/maven-script/maven-plugin-tools-model/pom.xml
+++ b/maven-script/maven-plugin-tools-model/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-model</artifactId>
diff --git a/maven-script/maven-script-ant/pom.xml b/maven-script/maven-script-ant/pom.xml
index eb9b39c5..e44c8f49 100644
--- a/maven-script/maven-script-ant/pom.xml
+++ b/maven-script/maven-script-ant/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-script-ant</artifactId>
diff --git a/maven-script/maven-script-beanshell/pom.xml b/maven-script/maven-script-beanshell/pom.xml
index dc29d881..b95d9f22 100644
--- a/maven-script/maven-script-beanshell/pom.xml
+++ b/maven-script/maven-script-beanshell/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-script-beanshell</artifactId>
diff --git a/maven-script/pom.xml b/maven-script/pom.xml
index 934ebd06..5ac290d4 100644
--- a/maven-script/pom.xml
+++ b/maven-script/pom.xml
@@ -23,7 +23,7 @@ under the License.
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.12.0</version>
+    <version>3.12.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-script</artifactId>
diff --git a/pom.xml b/pom.xml
index 187a074a..df5602b6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
   <groupId>org.apache.maven.plugin-tools</groupId>
   <artifactId>maven-plugin-tools</artifactId>
-  <version>3.12.0</version>
+  <version>3.12.1-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Maven Plugin Tools</name>
@@ -71,7 +71,7 @@
   <scm>
     <connection>scm:git:https://gitbox.apache.org/repos/asf/maven-plugin-tools.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/maven-plugin-tools.git</developerConnection>
-    <tag>maven-plugin-tools-3.12.0</tag>
+    <tag>maven-plugin-tools-3.9.0</tag>
     <url>https://github.com/apache/maven-plugin-tools/tree/${project.scm.tag}</url>
   </scm>
   <issueManagement>
@@ -107,7 +107,7 @@
     <reportingImplVersion>3.2.0</reportingImplVersion>
     <compilerPluginVersion>3.11.0</compilerPluginVersion>
     <javadocPluginVersion>3.5.0</javadocPluginVersion>
-    <project.build.outputTimestamp>2024-03-30T02:05:07Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2024-03-30T02:05:40Z</project.build.outputTimestamp>
   </properties>
 
   <dependencyManagement>