diff --git a/com.ibm.wala.cast.python.jython.test/pom.xml b/com.ibm.wala.cast.python.jython.test/pom.xml
index 0772d3e1b..d0fc900ed 100644
--- a/com.ibm.wala.cast.python.jython.test/pom.xml
+++ b/com.ibm.wala.cast.python.jython.test/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.jython.test</artifactId>
   <dependencies>
diff --git a/com.ibm.wala.cast.python.jython/pom.xml b/com.ibm.wala.cast.python.jython/pom.xml
index 5dfafed18..e5980558b 100644
--- a/com.ibm.wala.cast.python.jython/pom.xml
+++ b/com.ibm.wala.cast.python.jython/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.jython</artifactId>
   <dependencies>
diff --git a/com.ibm.wala.cast.python.jython3.test/pom.xml b/com.ibm.wala.cast.python.jython3.test/pom.xml
index a7d757189..5b2f0bdaa 100644
--- a/com.ibm.wala.cast.python.jython3.test/pom.xml
+++ b/com.ibm.wala.cast.python.jython3.test/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.jython3.test</artifactId>
   <dependencies>
diff --git a/com.ibm.wala.cast.python.jython3/pom.xml b/com.ibm.wala.cast.python.jython3/pom.xml
index 4c0f2e2e5..2d8062b9c 100644
--- a/com.ibm.wala.cast.python.jython3/pom.xml
+++ b/com.ibm.wala.cast.python.jython3/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.jython3</artifactId>
   <dependencies>
diff --git a/com.ibm.wala.cast.python.ml.test/pom.xml b/com.ibm.wala.cast.python.ml.test/pom.xml
index e7f35abe5..9413b8152 100644
--- a/com.ibm.wala.cast.python.ml.test/pom.xml
+++ b/com.ibm.wala.cast.python.ml.test/pom.xml
@@ -4,14 +4,14 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.ml.test</artifactId>
   <dependencies>
     <dependency>
       <groupId>${project.groupId}</groupId>
       <artifactId>com.ibm.wala.cast.python.jython.test</artifactId>
-      <version>0.12.0</version>
+      <version>0.13.0-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>${project.groupId}</groupId>
diff --git a/com.ibm.wala.cast.python.ml/pom.xml b/com.ibm.wala.cast.python.ml/pom.xml
index d208c3879..ac876652d 100644
--- a/com.ibm.wala.cast.python.ml/pom.xml
+++ b/com.ibm.wala.cast.python.ml/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.ml</artifactId>
   <dependencies>
diff --git a/com.ibm.wala.cast.python.test/pom.xml b/com.ibm.wala.cast.python.test/pom.xml
index c70f0c3e9..ed1a8e05a 100644
--- a/com.ibm.wala.cast.python.test/pom.xml
+++ b/com.ibm.wala.cast.python.test/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python.test</artifactId>
   <properties>
diff --git a/com.ibm.wala.cast.python/pom.xml b/com.ibm.wala.cast.python/pom.xml
index 5c1c5c99d..9ab0aea55 100644
--- a/com.ibm.wala.cast.python/pom.xml
+++ b/com.ibm.wala.cast.python/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.ibm.wala</groupId>
     <artifactId>ml</artifactId>
-    <version>0.12.0</version>
+    <version>0.13.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.ibm.wala.cast.python</artifactId>
   <dependencies>
diff --git a/pom.xml b/pom.xml
index fa2b29389..3892bead5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.ibm.wala</groupId>
   <artifactId>ml</artifactId>
-  <version>0.12.0</version>
+  <version>0.13.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <modules>
     <module>com.ibm.wala.cast.python</module>