diff --git a/pom.xml b/pom.xml
index 99f0f74..53a2ecf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <artifactId>psc-java-oss</artifactId>
     <description>PubSub Client (PSC)</description>
     <url>https://github.com/pinterest/psc</url>
-    <version>4.2.0</version>
+    <version>4.2.1-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>psc-java-oss</name>
     <modules>
diff --git a/psc-common/pom.xml b/psc-common/pom.xml
index 7db858a..2f8bba3 100644
--- a/psc-common/pom.xml
+++ b/psc-common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>psc-java-oss</artifactId>
         <groupId>com.pinterest.psc</groupId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/psc-examples/pom.xml b/psc-examples/pom.xml
index 2067bdd..c28ef56 100644
--- a/psc-examples/pom.xml
+++ b/psc-examples/pom.xml
@@ -5,13 +5,13 @@
     <parent>
         <artifactId>psc-java-oss</artifactId>
         <groupId>com.pinterest.psc</groupId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>psc-examples</artifactId>
-    <version>4.2.0</version>
+    <version>4.2.1-SNAPSHOT</version>
     <name>psc-examples</name>
 
     <properties>
diff --git a/psc-flink-logging/pom.xml b/psc-flink-logging/pom.xml
index af5ebd9..a2cfa1d 100644
--- a/psc-flink-logging/pom.xml
+++ b/psc-flink-logging/pom.xml
@@ -5,14 +5,14 @@
     <parent>
         <artifactId>psc-java-oss</artifactId>
         <groupId>com.pinterest.psc</groupId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
     <name>psc-flink-logging</name>
     <artifactId>psc-flink-logging</artifactId>
-    <version>4.2.0</version>
+    <version>4.2.1-SNAPSHOT</version>
 
     <dependencies>
         <dependency>
diff --git a/psc-flink/pom.xml b/psc-flink/pom.xml
index 3451b67..00866f5 100644
--- a/psc-flink/pom.xml
+++ b/psc-flink/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.pinterest.psc</groupId>
         <artifactId>psc-java-oss</artifactId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <name>psc-flink</name>
diff --git a/psc-integration-test/pom.xml b/psc-integration-test/pom.xml
index 1d9b7c8..bf81fad 100644
--- a/psc-integration-test/pom.xml
+++ b/psc-integration-test/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>psc-java-oss</artifactId>
         <groupId>com.pinterest.psc</groupId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/psc-logging/pom.xml b/psc-logging/pom.xml
index 3f052c3..67f6c90 100644
--- a/psc-logging/pom.xml
+++ b/psc-logging/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>psc-java-oss</artifactId>
         <groupId>com.pinterest.psc</groupId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/psc/pom.xml b/psc/pom.xml
index 7a06b35..0eaa0ae 100644
--- a/psc/pom.xml
+++ b/psc/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>psc-java-oss</artifactId>
         <groupId>com.pinterest.psc</groupId>
-        <version>4.2.0</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>