diff --git a/README.md b/README.md
index 3c140f01..d7250571 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Javadoc is [here](https://siroshun09.github.io/ConfigAPI/)
         <dependency>
             <groupId>com.github.siroshun09.configapi</groupId>
             <artifactId>bukkit</artifactId>
-            <version>2.1.0</version>
+            <version>2.1.1</version>
             <scope>compile</scope>
         </dependency>
 ```
@@ -41,7 +41,7 @@ Javadoc is [here](https://siroshun09.github.io/ConfigAPI/)
         <dependency>
             <groupId>com.github.siroshun09.configapi</groupId>
             <artifactId>bungee</artifactId>
-            <version>2.1.0</version>
+            <version>2.1.1</version>
             <scope>compile</scope>
         </dependency>
 ```
@@ -52,7 +52,7 @@ Javadoc is [here](https://siroshun09.github.io/ConfigAPI/)
         <dependency>
             <groupId>com.github.siroshun09.configapi</groupId>
             <artifactId>common</artifactId>
-            <version>2.1.0</version>
+            <version>2.1.1</version>
             <scope>compile</scope>
         </dependency>
 ```
diff --git a/bukkit/pom.xml b/bukkit/pom.xml
index b39c781c..44c1f1c2 100644
--- a/bukkit/pom.xml
+++ b/bukkit/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>configapi</artifactId>
         <groupId>com.github.siroshun09.configapi</groupId>
-        <version>2.1.0</version>
+        <version>2.1.1</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
@@ -45,7 +45,7 @@
         <dependency>
             <groupId>com.github.siroshun09.configapi</groupId>
             <artifactId>common</artifactId>
-            <version>2.1.0</version>
+            <version>2.1.1</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>
diff --git a/bungee/pom.xml b/bungee/pom.xml
index c1fe71be..508cabf4 100644
--- a/bungee/pom.xml
+++ b/bungee/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>configapi</artifactId>
         <groupId>com.github.siroshun09.configapi</groupId>
-        <version>2.1.0</version>
+        <version>2.1.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -44,7 +44,7 @@
         <dependency>
             <groupId>com.github.siroshun09.configapi</groupId>
             <artifactId>common</artifactId>
-            <version>2.1.0</version>
+            <version>2.1.1</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>
diff --git a/common/pom.xml b/common/pom.xml
index 3311199f..4110d7bf 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>configapi</artifactId>
         <groupId>com.github.siroshun09.configapi</groupId>
-        <version>2.1.0</version>
+        <version>2.1.1</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index 40df11ed..468370a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
 
     <groupId>com.github.siroshun09.configapi</groupId>
     <artifactId>configapi</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
     <packaging>pom</packaging>
 
     <name>ConfigAPI</name>