diff --git a/commons/core/pom.xml b/commons/core/pom.xml
index cb30218..2a6728b 100644
--- a/commons/core/pom.xml
+++ b/commons/core/pom.xml
@@ -2,13 +2,13 @@
     
     <modelVersion>4.0.0</modelVersion>
     <artifactId>ipf-gazelle-validation-commons-core</artifactId>
-    <version>3.0.0</version>
+    <version>3.1-SNAPSHOT</version>
     <name>ipf-gazelle-validation-commons-core</name>
 
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-commons</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/commons/pom.xml b/commons/pom.xml
index f1e00b4..12f2165 100644
--- a/commons/pom.xml
+++ b/commons/pom.xml
@@ -2,14 +2,14 @@
     
     <modelVersion>4.0.0</modelVersion>
     <artifactId>ipf-gazelle-validation-commons</artifactId>
-    <version>3.0.0</version>
+    <version>3.1-SNAPSHOT</version>
     <name>ipf-gazelle-validation-commons</name>
     <packaging>pom</packaging>
 
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/pom.xml b/pom.xml
index c039538..8171379 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.openehealth.ipf.gazelle</groupId>
     <artifactId>ipf-gazelle-validation</artifactId>
-    <version>3.0.0</version>
+    <version>3.1-SNAPSHOT</version>
     <name>ipf-gazelle-validation</name>
     <packaging>pom</packaging>
 
@@ -113,7 +113,7 @@
         <connection>scm:git:git@github.com:oehf/ipf-gazelle.git</connection>
         <developerConnection>scm:git:git@github.com:oehf/ipf-gazelle.git</developerConnection>
         <url>scm:git:git@github.com:oehf/ipf-gazelle.git</url>
-      <tag>ipf-gazelle-3.0.0</tag>
+      <tag>HEAD</tag>
   </scm>
 
     <modules>
diff --git a/profiles/card/pom.xml b/profiles/card/pom.xml
index 0c04baf..379f9ac 100644
--- a/profiles/card/pom.xml
+++ b/profiles/card/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/core/pom.xml b/profiles/core/pom.xml
index 7697a38..93ce0ee 100644
--- a/profiles/core/pom.xml
+++ b/profiles/core/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/iti-pam/pom.xml b/profiles/iti-pam/pom.xml
index fb7f574..cbc258e 100644
--- a/profiles/iti-pam/pom.xml
+++ b/profiles/iti-pam/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/iti-pixpdq/pom.xml b/profiles/iti-pixpdq/pom.xml
index 954a40d..8d237f4 100644
--- a/profiles/iti-pixpdq/pom.xml
+++ b/profiles/iti-pixpdq/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/lab/pom.xml b/profiles/lab/pom.xml
index 0c7ed60..3417637 100644
--- a/profiles/lab/pom.xml
+++ b/profiles/lab/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/pat/pom.xml b/profiles/pat/pom.xml
index b368238..9002373 100644
--- a/profiles/pat/pom.xml
+++ b/profiles/pat/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/pcd/pom.xml b/profiles/pcd/pom.xml
index 4f88a8d..76297e3 100644
--- a/profiles/pcd/pom.xml
+++ b/profiles/pcd/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/pharmh/pom.xml b/profiles/pharmh/pom.xml
index cd0bc01..04a7a35 100644
--- a/profiles/pharmh/pom.xml
+++ b/profiles/pharmh/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/profiles/pom.xml b/profiles/pom.xml
index 5275830..a305178 100644
--- a/profiles/pom.xml
+++ b/profiles/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <modules>
diff --git a/profiles/rad/pom.xml b/profiles/rad/pom.xml
index 0b85173..c9b288e 100644
--- a/profiles/rad/pom.xml
+++ b/profiles/rad/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.openehealth.ipf.gazelle</groupId>
         <artifactId>ipf-gazelle-validation-profiles</artifactId>
-        <version>3.0.0</version>
+        <version>3.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>