diff --git a/src/expat b/src/expat
index 4444957d18..adaa0c379b 160000
--- a/src/expat
+++ b/src/expat
@@ -1 +1 @@
-Subproject commit 4444957d1885fe351998b0a50f3d519cf757889c
+Subproject commit adaa0c379b92fb962db0dd8363c1e4e2d4e7a060
diff --git a/src/png b/src/png
index 3ffeff7877..9853c67ab4 160000
--- a/src/png
+++ b/src/png
@@ -1 +1 @@
-Subproject commit 3ffeff7877598d3236cc09a6d3f478073eb33f35
+Subproject commit 9853c67ab43053b1bbe05edde3dc12854d48b158
diff --git a/src/tiff b/src/tiff
index 6e69a96bf6..28ce1ef089 160000
--- a/src/tiff
+++ b/src/tiff
@@ -1 +1 @@
-Subproject commit 6e69a96bf6bc968374a41027883c2762b504e32e
+Subproject commit 28ce1ef089a099334920a2d12698fa6354e30247