diff --git a/.gitmodules b/.gitmodules
index 923464d..2402d61 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "3party/googletest"]
 	path = 3party/googletest
 	url = https://code.uocat.com/3party/googletest
-	branch = release-1.8.1
+	branch = release-1.7.0
diff --git a/3party/googletest b/3party/googletest
index b3a9ba2..c994585 160000
--- a/3party/googletest
+++ b/3party/googletest
@@ -1 +1 @@
-Subproject commit b3a9ba2b8e975550799838332803d468797ae2e1
+Subproject commit c99458533a9b4c743ed51537e25989ea55944908