diff --git a/vendor/valgrind b/vendor/valgrind
index da939085..8e98dfdf 160000
--- a/vendor/valgrind
+++ b/vendor/valgrind
@@ -1 +1 @@
-Subproject commit da939085d8ab7402f52e231ba9ef56830c799457
+Subproject commit 8e98dfdf0c217d12c377ca5d6497ce96cbfdb387
diff --git a/vendor/zlib b/vendor/zlib
index 30047858..7280bf52 160000
--- a/vendor/zlib
+++ b/vendor/zlib
@@ -1 +1 @@
-Subproject commit 30047858c392db96084f54d3044a62140333e3eb
+Subproject commit 7280bf528e1043c6125f2fb2dfa1b32936e0fbe8