diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 7ab0e27..9b609bf 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>benchmarks</artifactId>
diff --git a/collector-pubsub/pom.xml b/collector-pubsub/pom.xml
index 179b51c..1fa402f 100644
--- a/collector-pubsub/pom.xml
+++ b/collector-pubsub/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/encoder-stackdriver-brave/pom.xml b/encoder-stackdriver-brave/pom.xml
index 4836e77..9c1c7e1 100644
--- a/encoder-stackdriver-brave/pom.xml
+++ b/encoder-stackdriver-brave/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/encoder-stackdriver-zipkin/pom.xml b/encoder-stackdriver-zipkin/pom.xml
index d45de93..4153a04 100644
--- a/encoder-stackdriver-zipkin/pom.xml
+++ b/encoder-stackdriver-zipkin/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/module/pom.xml b/module/pom.xml
index 4ddd70e..ac6d27d 100644
--- a/module/pom.xml
+++ b/module/pom.xml
@@ -10,7 +10,7 @@
   <parent>
     <groupId>io.zipkin.gcp</groupId>
     <artifactId>zipkin-gcp-parent</artifactId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>zipkin-module-gcp</artifactId>
diff --git a/pom.xml b/pom.xml
index 3a9d69a..4ad3d50 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
   <groupId>io.zipkin.gcp</groupId>
   <artifactId>zipkin-gcp-parent</artifactId>
-  <version>2.3.0</version>
+  <version>2.3.1-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <modules>
@@ -155,7 +155,7 @@
     <url>https://github.com/openzipkin/zipkin-gcp</url>
     <connection>scm:git:https://github.com/openzipkin/zipkin-gcp.git</connection>
     <developerConnection>scm:git:https://github.com/openzipkin/zipkin-gcp.git</developerConnection>
-    <tag>2.3.0</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <!-- Developer section is needed for Maven Central, but doesn't need to include each person -->
diff --git a/propagation-stackdriver/pom.xml b/propagation-stackdriver/pom.xml
index 6bbc507..9a9a67a 100644
--- a/propagation-stackdriver/pom.xml
+++ b/propagation-stackdriver/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/sender-pubsub/pom.xml b/sender-pubsub/pom.xml
index 65684b8..4bdb968 100644
--- a/sender-pubsub/pom.xml
+++ b/sender-pubsub/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <artifactId>zipkin-gcp-parent</artifactId>
         <groupId>io.zipkin.gcp</groupId>
-        <version>2.3.0</version>
+        <version>2.3.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/sender-stackdriver/pom.xml b/sender-stackdriver/pom.xml
index a9567e5..b776aa9 100644
--- a/sender-stackdriver/pom.xml
+++ b/sender-stackdriver/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/storage-stackdriver/pom.xml b/storage-stackdriver/pom.xml
index f20767e..eb54006 100644
--- a/storage-stackdriver/pom.xml
+++ b/storage-stackdriver/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/translation-stackdriver/pom.xml b/translation-stackdriver/pom.xml
index a40d8d5..ca761b3 100644
--- a/translation-stackdriver/pom.xml
+++ b/translation-stackdriver/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>zipkin-gcp-parent</artifactId>
     <groupId>io.zipkin.gcp</groupId>
-    <version>2.3.0</version>
+    <version>2.3.1-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>