diff --git a/.gitmodules b/.gitmodules
index 195d0a0..9ee9bac 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -6,10 +6,6 @@
 	path = examples/diff/complex
 	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
 	branch = diff/complex
-[submodule "examples/cpplint/sillycode"]
-	path = examples/cpplint/sillycode
-	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
-	branch = cpplint/sillycode
 [submodule "examples/compile/success"]
 	path = examples/compile/success
 	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
@@ -26,10 +22,6 @@
 	path = examples/sample/error
 	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
 	branch = sample/error
-[submodule "examples/keyword/cpplint/sillycode"]
-	path = examples/keyword/cpplint/sillycode
-	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
-	branch = keyword/cpplint/sillycode
 [submodule "examples/clangtidy/sillycode"]
 	path = examples/clangtidy/sillycode
 	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
@@ -74,3 +66,7 @@
 	path = examples/cppcheck/simple
 	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
 	branch = cppcheck/simple
+[submodule "examples/cpplint/simple"]
+	path = examples/cpplint/simple
+	url = ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-examples.git
+	branch = cpplint/simple
diff --git a/examples/cpplint/sillycode b/examples/cpplint/sillycode
deleted file mode 160000
index 4d55429..0000000
--- a/examples/cpplint/sillycode
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 4d55429794f93c600a96622889052cec58e35804
diff --git a/examples/cpplint/simple b/examples/cpplint/simple
new file mode 160000
index 0000000..b741b29
--- /dev/null
+++ b/examples/cpplint/simple
@@ -0,0 +1 @@
+Subproject commit b741b29ee58ad9b92ac29631a454f97c549181a7