diff --git a/.gitmodules b/.gitmodules
index ef5a99f..3a4cf72 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "third_party/valgrind"]
 	path = third_party/valgrind
 	url = https://sourceware.org/git/valgrind.git
-	branch = VALGRIND_3_27_0
+	branch = VALGRIND_3_27_1
diff --git a/third_party/valgrind b/third_party/valgrind
index b80fd12..b50f9a0 160000
--- a/third_party/valgrind
+++ b/third_party/valgrind
@@ -1 +1 @@
-Subproject commit b80fd124192df64c168b4bbd8ef68a3c0abbba28
+Subproject commit b50f9a09ca65cc983c934bd0f50059304f3e939f