diff --git a/plugin/auth/src/main/java/com/alibaba/nacos/plugin/auth/spi/server/AuthPluginManager.java b/plugin/auth/src/main/java/com/alibaba/nacos/plugin/auth/spi/server/AuthPluginManager.java
index 6e6a5530b..a714d88a0 100644
--- a/plugin/auth/src/main/java/com/alibaba/nacos/plugin/auth/spi/server/AuthPluginManager.java
+++ b/plugin/auth/src/main/java/com/alibaba/nacos/plugin/auth/spi/server/AuthPluginManager.java
@@ -43,7 +43,7 @@ public class AuthPluginManager {
      */
     private final Map<String, AuthPluginService> authServiceMap = new HashMap<>();
     
-    public AuthPluginManager() {
+    private AuthPluginManager() {
         initAuthServices();
     }
     
diff --git a/plugin/encryption/src/main/java/com/alibaba/nacos/plugin/encryption/EncryptionPluginManager.java b/plugin/encryption/src/main/java/com/alibaba/nacos/plugin/encryption/EncryptionPluginManager.java
index f839796cd..1bd80175e 100644
--- a/plugin/encryption/src/main/java/com/alibaba/nacos/plugin/encryption/EncryptionPluginManager.java
+++ b/plugin/encryption/src/main/java/com/alibaba/nacos/plugin/encryption/EncryptionPluginManager.java
@@ -41,7 +41,7 @@ public class EncryptionPluginManager {
     
     private static final EncryptionPluginManager INSTANCE = new EncryptionPluginManager();
     
-    public EncryptionPluginManager() {
+    private EncryptionPluginManager() {
         loadInitial();
     }