diff --git a/pig-common/src/main/java/com/github/pig/common/constant/SecurityConstants.java b/pig-common/src/main/java/com/github/pig/common/constant/SecurityConstants.java
index e763d5dd..a3fe13dc 100644
--- a/pig-common/src/main/java/com/github/pig/common/constant/SecurityConstants.java
+++ b/pig-common/src/main/java/com/github/pig/common/constant/SecurityConstants.java
@@ -62,12 +62,12 @@ public interface SecurityConstants {
     /**
      * 默认生成图形验证码宽度
      */
-    String DEFAULT_IMAGE_WIDTH = "150";
+    String DEFAULT_IMAGE_WIDTH = "100";
 
     /**
      * 默认生成图像验证码高度
      */
-    String DEFAULT_IMAGE_HEIGHT = "32";
+    String DEFAULT_IMAGE_HEIGHT = "40";
 
     /**
      * 默认生成图形验证码长度