diff --git a/src/external/compiler-rt b/src/external/compiler-rt
index ca3363cd2..cb293c7c1 160000
--- a/src/external/compiler-rt
+++ b/src/external/compiler-rt
@@ -1 +1 @@
-Subproject commit ca3363cd235faf9aba4d64523988c1da17853d9a
+Subproject commit cb293c7c140759b0ae9bf130f7962589091f01b3
diff --git a/src/external/dtrace b/src/external/dtrace
index b85cb8168..71e37eee4 160000
--- a/src/external/dtrace
+++ b/src/external/dtrace
@@ -1 +1 @@
-Subproject commit b85cb8168535024c30de5c0dccc7ccedc36aa2fb
+Subproject commit 71e37eee4d6593e7fc30c4b2c08b9029f1425ade
diff --git a/src/external/libxpc b/src/external/libxpc
index 9b767f9eb..542a10792 160000
--- a/src/external/libxpc
+++ b/src/external/libxpc
@@ -1 +1 @@
-Subproject commit 9b767f9ebe204d2a74871fb449676a6bce83edd6
+Subproject commit 542a1079269f90e9be155b1d3f39b60bdb05eca5
diff --git a/src/external/zlib b/src/external/zlib
index 6980a7b5d..1f53451ce 160000
--- a/src/external/zlib
+++ b/src/external/zlib
@@ -1 +1 @@
-Subproject commit 6980a7b5db5c3465dc2373e1dcbb750b27e25923
+Subproject commit 1f53451ceb61f579f410bf845373c58f301265d0