diff --git a/demo/api/pom.xml b/demo/api/pom.xml
index 7a3fdf4..69fccb1 100644
--- a/demo/api/pom.xml
+++ b/demo/api/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.pf4j.demo</groupId>
         <artifactId>pf4j-demo-parent</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pf4j-demo-api</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>Demo Api</name>
 
diff --git a/demo/app/pom.xml b/demo/app/pom.xml
index e3f2c94..1c5ec68 100644
--- a/demo/app/pom.xml
+++ b/demo/app/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.pf4j.demo</groupId>
         <artifactId>pf4j-demo-parent</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pf4j-demo-app</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>Demo App</name>
 
diff --git a/demo/plugins/plugin1/pom.xml b/demo/plugins/plugin1/pom.xml
index 614fcb5..992680b 100644
--- a/demo/plugins/plugin1/pom.xml
+++ b/demo/plugins/plugin1/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.pf4j.demo</groupId>
         <artifactId>pf4j-demo-plugins</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pf4j-demo-plugin1</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>Demo Plugin #1</name>
 
diff --git a/demo/plugins/plugin2/pom.xml b/demo/plugins/plugin2/pom.xml
index 4a1c0cc..661b3f3 100644
--- a/demo/plugins/plugin2/pom.xml
+++ b/demo/plugins/plugin2/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.pf4j.demo</groupId>
         <artifactId>pf4j-demo-plugins</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pf4j-demo-plugin2</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>Demo Plugin #2</name>
 
diff --git a/demo/plugins/pom.xml b/demo/plugins/pom.xml
index b37fd0d..24aebe9 100644
--- a/demo/plugins/pom.xml
+++ b/demo/plugins/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.pf4j.demo</groupId>
         <artifactId>pf4j-demo-parent</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pf4j-demo-plugins</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>Demo Plugins Parent</name>
 
diff --git a/demo/pom.xml b/demo/pom.xml
index 196a5f5..c7f17d5 100644
--- a/demo/pom.xml
+++ b/demo/pom.xml
@@ -4,13 +4,13 @@
     <parent>
         <groupId>org.pf4j</groupId>
         <artifactId>pf4j-parent</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.pf4j.demo</groupId>
     <artifactId>pf4j-demo-parent</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>Demo Parent</name>
 
diff --git a/maven-archetypes/quickstart/pom.xml b/maven-archetypes/quickstart/pom.xml
index 2044ea2..7f79ad4 100755
--- a/maven-archetypes/quickstart/pom.xml
+++ b/maven-archetypes/quickstart/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.pf4j</groupId>
         <artifactId>pf4j-parent</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/pf4j/pom.xml b/pf4j/pom.xml
index 9a20511..476cbec 100644
--- a/pf4j/pom.xml
+++ b/pf4j/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.pf4j</groupId>
         <artifactId>pf4j-parent</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pf4j</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>PF4J</name>
     <description>Plugin Framework for Java</description>
diff --git a/pom.xml b/pom.xml
index 2998def..5e060f6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.pf4j</groupId>
     <artifactId>pf4j-parent</artifactId>
-    <version>3.8.0</version>
+    <version>3.9.0-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>PF4J Parent</name>
     <description>Plugin Framework for Java</description>
@@ -28,7 +28,7 @@
         <connection>scm:git:https://github.com/pf4j/pf4j.git</connection>
         <developerConnection>scm:git:git@github.com:pf4j/pf4j.git</developerConnection>
         <url>git@github.com/pf4j/pf4j.git</url>
-        <tag>release-3.8.0</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <distributionManagement>