diff --git a/bom/pom.xml b/bom/pom.xml
index 287e8221d9..93081a4b12 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject</groupId>
     <artifactId>guice-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <packaging>pom</packaging>
diff --git a/core/pom.xml b/core/pom.xml
index d47d012ee3..f99989c4a4 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject</groupId>
     <artifactId>guice-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice</artifactId>
diff --git a/extensions/assistedinject/pom.xml b/extensions/assistedinject/pom.xml
index 2c8f3fbefe..b173827b1d 100644
--- a/extensions/assistedinject/pom.xml
+++ b/extensions/assistedinject/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-assistedinject</artifactId>
diff --git a/extensions/dagger-adapter/pom.xml b/extensions/dagger-adapter/pom.xml
index 5ebb1d53b6..256bd5adfe 100644
--- a/extensions/dagger-adapter/pom.xml
+++ b/extensions/dagger-adapter/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
   <artifactId>guice-dagger-adapter</artifactId>
   <name>Google Guice - Extensions - Dagger Adapter</name>
diff --git a/extensions/grapher/pom.xml b/extensions/grapher/pom.xml
index 5e7a4385fd..cb9f6a9d44 100644
--- a/extensions/grapher/pom.xml
+++ b/extensions/grapher/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-grapher</artifactId>
diff --git a/extensions/jmx/pom.xml b/extensions/jmx/pom.xml
index 23a589fe99..fd8feaaa62 100644
--- a/extensions/jmx/pom.xml
+++ b/extensions/jmx/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-jmx</artifactId>
diff --git a/extensions/jndi/pom.xml b/extensions/jndi/pom.xml
index 06c3480164..de99f44e1e 100644
--- a/extensions/jndi/pom.xml
+++ b/extensions/jndi/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-jndi</artifactId>
diff --git a/extensions/persist/pom.xml b/extensions/persist/pom.xml
index b4a2331f8e..e76348a509 100644
--- a/extensions/persist/pom.xml
+++ b/extensions/persist/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-persist</artifactId>
diff --git a/extensions/pom.xml b/extensions/pom.xml
index 90a4c70b10..e8d1bd84a1 100644
--- a/extensions/pom.xml
+++ b/extensions/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject</groupId>
     <artifactId>guice-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <packaging>pom</packaging>
diff --git a/extensions/servlet/pom.xml b/extensions/servlet/pom.xml
index b89fdbe51a..8b987994f3 100644
--- a/extensions/servlet/pom.xml
+++ b/extensions/servlet/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-servlet</artifactId>
diff --git a/extensions/spring/pom.xml b/extensions/spring/pom.xml
index 75acabe41e..733b10550d 100644
--- a/extensions/spring/pom.xml
+++ b/extensions/spring/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-spring</artifactId>
diff --git a/extensions/struts2/pom.xml b/extensions/struts2/pom.xml
index b5a897474f..b1d713bc60 100644
--- a/extensions/struts2/pom.xml
+++ b/extensions/struts2/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-struts2</artifactId>
diff --git a/extensions/testlib/pom.xml b/extensions/testlib/pom.xml
index a1072d28e8..ff53e1488a 100644
--- a/extensions/testlib/pom.xml
+++ b/extensions/testlib/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-testlib</artifactId>
diff --git a/extensions/throwingproviders/pom.xml b/extensions/throwingproviders/pom.xml
index d318cb0902..a5f7478075 100644
--- a/extensions/throwingproviders/pom.xml
+++ b/extensions/throwingproviders/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.inject.extensions</groupId>
     <artifactId>extensions-parent</artifactId>
-    <version>5.0.2-SNAPSHOT</version>
+    <version>5.1.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>guice-throwingproviders</artifactId>
diff --git a/pom.xml b/pom.xml
index 4b8e76fda3..75bb38f9ea 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@ See the Apache License Version 2.0 for the specific language governing permissio
 
   <groupId>com.google.inject</groupId>
   <artifactId>guice-parent</artifactId>
-  <version>5.0.2-SNAPSHOT</version>
+  <version>5.1.1-SNAPSHOT</version>
 
   <name>Google Guice</name>
 
@@ -119,7 +119,7 @@ See the Apache License Version 2.0 for the specific language governing permissio
     <!--
      | The last stable release version id, used for generating API diffs between released versions
     -->
-    <guice.lastStableRelease>4.2.3</guice.lastStableRelease>
+    <guice.lastStableRelease>5.1.0</guice.lastStableRelease>
     <gpg.skip>true</gpg.skip>
   </properties>