diff --git a/google-cloud-spanner-cassandra/pom.xml b/google-cloud-spanner-cassandra/pom.xml
index 827337c7..523d0238 100644
--- a/google-cloud-spanner-cassandra/pom.xml
+++ b/google-cloud-spanner-cassandra/pom.xml
@@ -8,11 +8,11 @@
     <artifactId>google-cloud-spanner-cassandra</artifactId>
     <packaging>jar</packaging>
     <name>Google Cloud Spanner Cassandra</name>
-    <version>1.2.0</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
+    <version>1.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
     <parent>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-spanner-cassandra-parent</artifactId>
-        <version>1.2.0</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
+        <version>1.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
     </parent>
 
     <dependencies>
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
index 1a06c6d7..701fdb2a 100644
--- a/integration-tests/pom.xml
+++ b/integration-tests/pom.xml
@@ -6,7 +6,7 @@
     <parent>
           <groupId>com.google.cloud</groupId>
           <artifactId>google-cloud-spanner-cassandra-parent</artifactId>
-          <version>1.2.0</version> <!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
+          <version>1.2.1-SNAPSHOT</version> <!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
     </parent>
 
     <groupId>com.google.cloud</groupId>
diff --git a/pom.xml b/pom.xml
index 56a289be..df70c943 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-spanner-cassandra-parent</artifactId>
     <packaging>pom</packaging>
-    <version>1.2.0</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
+    <version>1.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
 
     <name>Google Cloud Spanner Cassandra Parent</name>
     <url>https://github.com/googleapis/java-spanner-cassandra</url>
@@ -154,7 +154,7 @@
             <dependency>
                 <groupId>com.google.cloud</groupId>
                 <artifactId>google-cloud-spanner-cassandra</artifactId>
-                <version>1.2.0</version> <!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
+                <version>1.2.1-SNAPSHOT</version> <!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
             </dependency>
         </dependencies>
     </dependencyManagement>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index 0d8f304f..91b1807b 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -29,7 +29,7 @@
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>google-cloud-spanner-cassandra</artifactId>
-            <version>1.2.0</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
+            <version>1.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-cassandra:current} -->
         </dependency>
         <dependency>
             <groupId>org.apache.cassandra</groupId>
diff --git a/versions.txt b/versions.txt
index 475f6ae0..56da7d74 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-spanner-cassandra:1.2.0:1.2.0
+google-cloud-spanner-cassandra:1.2.0:1.2.1-SNAPSHOT