diff --git a/.github/workflows/gradle-ci.yml b/.github/workflows/gradle-ci.yml
index ce4f6dd..4030502 100644
--- a/.github/workflows/gradle-ci.yml
+++ b/.github/workflows/gradle-ci.yml
@@ -46,7 +46,7 @@ jobs:
       - name: Setup Node.js environment
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 16
       - name: semantic-release
         run: |
           npm install -g semantic-release @semantic-release/exec
diff --git a/src/main/java/org/casbin/adapter/DB2Adapter.java b/src/main/java/org/casbin/adapter/DB2Adapter.java
index 945e691..fe5afea 100644
--- a/src/main/java/org/casbin/adapter/DB2Adapter.java
+++ b/src/main/java/org/casbin/adapter/DB2Adapter.java
@@ -13,17 +13,18 @@ public class DB2Adapter extends JdbcAdapter {
 
     private static final String CHECK_TABLE_SQL = "select 1 from syscat.tables where tabname = upper('CASBIN_RULE')";
 
-    private final static String DROP_TABLE_SQL = "DROP TABLE CASBIN_RULE";
+    private static final  String DROP_TABLE_SQL = "DROP TABLE CASBIN_RULE";
 
     private static final String INIT_TABLE_SQL = "CREATE TABLE CASBIN_RULE (" +
-            "  ID int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, "+
+            "  ID INTEGER NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1) ,"+
             "  PTYPE VARCHAR(255) NOT NULL ," +
             "  V0 VARCHAR(255) DEFAULT NULL ," +
             "  V1 VARCHAR(255) DEFAULT NULL ," +
             "  V2 VARCHAR(255) DEFAULT NULL ," +
             "  V3 VARCHAR(255) DEFAULT NULL ," +
             "  V4 VARCHAR(255) DEFAULT NULL ," +
-            "  V5 VARCHAR(255) DEFAULT NULL" +
+            "  V5 VARCHAR(255) DEFAULT NULL ," +
+            "  PRIMARY KEY (ID) " +
             ")";
 
     /**