diff --git a/vendor/valgrind b/vendor/valgrind
index cb45544c..49a55a4f 160000
--- a/vendor/valgrind
+++ b/vendor/valgrind
@@ -1 +1 @@
-Subproject commit cb45544c7479df94b8a7f6444ba2528dba70d8b7
+Subproject commit 49a55a4f3513e1e6ab0df4aea7e71f3718694ebf
diff --git a/vendor/zlib b/vendor/zlib
index 0913fde1..7596e3a1 160000
--- a/vendor/zlib
+++ b/vendor/zlib
@@ -1 +1 @@
-Subproject commit 0913fde18438db39c50aac35a410243380aad6ed
+Subproject commit 7596e3a1e530db98739d89187dec6fa13bd52790