diff --git a/src/expat b/src/expat
index 7972ac101c..a0c3149026 160000
--- a/src/expat
+++ b/src/expat
@@ -1 +1 @@
-Subproject commit 7972ac101c1bf3dec560aa0ee8078701a08c0e16
+Subproject commit a0c31490268c5178c8b2273b19c44e64fb6c7dc7
diff --git a/src/jpeg b/src/jpeg
index 0c4f9b739f..e951f6ed63 160000
--- a/src/jpeg
+++ b/src/jpeg
@@ -1 +1 @@
-Subproject commit 0c4f9b739f65966ac5ffc34c2a42f4ab7f21d92d
+Subproject commit e951f6ed6373d3c8d550755e4ec00adadc878aca
diff --git a/src/png b/src/png
index 5dbedf2c64..a016282f47 160000
--- a/src/png
+++ b/src/png
@@ -1 +1 @@
-Subproject commit 5dbedf2c64e40544b5ab776afce509a961c16e20
+Subproject commit a016282f4752b1177da5722efda7e3045a4ecdf1
diff --git a/src/zlib b/src/zlib
index c7955ffb6e..1c1550729c 160000
--- a/src/zlib
+++ b/src/zlib
@@ -1 +1 @@
-Subproject commit c7955ffb6e88050487d46928f0701d94e4f0dd32
+Subproject commit 1c1550729c409333f3cf4705a995c460599547a1