diff --git a/devkit-core/pom.xml b/devkit-core/pom.xml
index f4bf40e..e9aaf22 100644
--- a/devkit-core/pom.xml
+++ b/devkit-core/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>devkit-core</artifactId>
diff --git a/devkit-utils/pom.xml b/devkit-utils/pom.xml
index 1ddf6c5..e79956c 100644
--- a/devkit-utils/pom.xml
+++ b/devkit-utils/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>devkit-utils</artifactId>
diff --git a/guid/pom.xml b/guid/pom.xml
index e3742fb..fa3186e 100644
--- a/guid/pom.xml
+++ b/guid/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>guid</artifactId>
diff --git a/pom.xml b/pom.xml
index 3ea9171..3471beb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
     <groupId>cn.org.codecrafters</groupId>
     <artifactId>jdevkit</artifactId>
-    <version>1.1.1</version>
+    <version>1.2.0-alpha</version>
     <inceptionYear>2023</inceptionYear>
 
     <packaging>pom</packaging>
diff --git a/property-guard-spring-boot-starter/pom.xml b/property-guard-spring-boot-starter/pom.xml
index 8df59be..a4cad59 100644
--- a/property-guard-spring-boot-starter/pom.xml
+++ b/property-guard-spring-boot-starter/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>property-guard-spring-boot-starter</artifactId>
diff --git a/simple-jwt-authzero/pom.xml b/simple-jwt-authzero/pom.xml
index 29e96b1..312a239 100644
--- a/simple-jwt-authzero/pom.xml
+++ b/simple-jwt-authzero/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>simple-jwt-authzero</artifactId>
diff --git a/simple-jwt-facade/pom.xml b/simple-jwt-facade/pom.xml
index d16ecf6..d9ff380 100644
--- a/simple-jwt-facade/pom.xml
+++ b/simple-jwt-facade/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>simple-jwt-facade</artifactId>
diff --git a/simple-jwt-jjwt/pom.xml b/simple-jwt-jjwt/pom.xml
index ff49ffa..36479b7 100644
--- a/simple-jwt-jjwt/pom.xml
+++ b/simple-jwt-jjwt/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>simple-jwt-jjwt</artifactId>
diff --git a/simple-jwt-spring-boot-starter/pom.xml b/simple-jwt-spring-boot-starter/pom.xml
index 50a9890..66d8704 100644
--- a/simple-jwt-spring-boot-starter/pom.xml
+++ b/simple-jwt-spring-boot-starter/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>simple-jwt-spring-boot-starter</artifactId>
diff --git a/webcal/pom.xml b/webcal/pom.xml
index eb49cb2..cdec1fd 100644
--- a/webcal/pom.xml
+++ b/webcal/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>cn.org.codecrafters</groupId>
         <artifactId>jdevkit</artifactId>
-        <version>1.1.1</version>
+        <version>1.2.0-alpha</version>
     </parent>
 
     <artifactId>webcal</artifactId>