diff --git a/pom.xml b/pom.xml
index 1e68c7a3a..ae03200c1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
 
   <artifactId>google-cloud-logging-logback</artifactId>
-  <version>0.120.3-alpha</version><!-- {x-version-update:google-cloud-logging-logback:current} -->
+  <version>0.120.4-alpha-SNAPSHOT</version><!-- {x-version-update:google-cloud-logging-logback:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Logging Logback Appender</name>
   <url>https://github.com/googleapis/java-logging-logback</url>
diff --git a/versions.txt b/versions.txt
index 69d98b4f1..1e8ba776e 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-logging-logback:0.120.3-alpha:0.120.3-alpha
+google-cloud-logging-logback:0.120.3-alpha:0.120.4-alpha-SNAPSHOT