diff --git a/bug-pattern/pom.xml b/bug-pattern/pom.xml
index af7d4cf2..ae164174 100644
--- a/bug-pattern/pom.xml
+++ b/bug-pattern/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>jp.skypencil.findbugs.slf4j</groupId>
     <artifactId>findbugs-slf4j</artifactId>
-    <version>1.2.1-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>bug-pattern</artifactId>
   <url>https://github.com/KengoTODA/findbugs-slf4j</url>
diff --git a/pom.xml b/pom.xml
index d7ace14f..80645bf8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
   </parent>
   <groupId>jp.skypencil.findbugs.slf4j</groupId>
   <artifactId>findbugs-slf4j</artifactId>
-  <version>1.2.1-SNAPSHOT</version>
+  <version>1.2.1</version>
   <url>https://github.com/KengoTODA/findbugs-slf4j</url>
   <description>FindBugs plugin for SLF4J</description>
   <packaging>pom</packaging>
diff --git a/sonar-plugin/pom.xml b/sonar-plugin/pom.xml
index ca4095ff..4b57d45f 100644
--- a/sonar-plugin/pom.xml
+++ b/sonar-plugin/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>jp.skypencil.findbugs.slf4j</groupId>
     <artifactId>findbugs-slf4j</artifactId>
-    <version>1.2.1-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>sonar-plugin</artifactId>
   <build>
diff --git a/test-case/pom.xml b/test-case/pom.xml
index b2cb543d..e4b3f443 100644
--- a/test-case/pom.xml
+++ b/test-case/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>jp.skypencil.findbugs.slf4j</groupId>
     <artifactId>findbugs-slf4j</artifactId>
-    <version>1.2.1-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>test-case</artifactId>
   <build>