diff --git a/deps/libtomcrypt b/deps/libtomcrypt
index d432b131..01c455c3 160000
--- a/deps/libtomcrypt
+++ b/deps/libtomcrypt
@@ -1 +1 @@
-Subproject commit d432b13139ced07e309552f2a4893116883d434a
+Subproject commit 01c455c3d5f781312de84594a11e102a20d5b959
diff --git a/deps/libtommath b/deps/libtommath
index 9ff526fa..13444a8a 160000
--- a/deps/libtommath
+++ b/deps/libtommath
@@ -1 +1 @@
-Subproject commit 9ff526fa2218f8697dcd0c9821330fa04682eb75
+Subproject commit 13444a8af2d077eda8fd0be017cac2dad20465dc
diff --git a/deps/mongoose b/deps/mongoose
index e2dfac94..e9a8e546 160000
--- a/deps/mongoose
+++ b/deps/mongoose
@@ -1 +1 @@
-Subproject commit e2dfac946dd4e4fa2312fde0aae90b18e738ad12
+Subproject commit e9a8e5468d9e6e37fd2813decfd49f0d5312e66e
diff --git a/deps/pdcurses b/deps/pdcurses
index 03212c5e..2b9bb5d0 160000
--- a/deps/pdcurses
+++ b/deps/pdcurses
@@ -1 +1 @@
-Subproject commit 03212c5e1783cd41370860903149245bbe36b1fa
+Subproject commit 2b9bb5d0c8fc563fec431cf24efb0f985e4b43b7
diff --git a/deps/zlib b/deps/zlib
index 41d86c73..7c0c75e9 160000
--- a/deps/zlib
+++ b/deps/zlib
@@ -1 +1 @@
-Subproject commit 41d86c73b21191a3fa9ea5f476fc9f1fc5e4f8b3
+Subproject commit 7c0c75e990ca5395139c148f120042048b0ce091
diff --git a/premake/zlib.lua b/premake/zlib.lua
index 6657b56e..08b55e7a 100644
--- a/premake/zlib.lua
+++ b/premake/zlib.lua
@@ -38,7 +38,6 @@ function zlib.project()
 		}
 		defines
 		{
-			"ZLIB_DLL",
 			"_CRT_SECURE_NO_DEPRECATE",
 		}
 
diff --git a/premake5.lua b/premake5.lua
index 7363f218..09687acc 100644
--- a/premake5.lua
+++ b/premake5.lua
@@ -219,8 +219,7 @@ protobuf.setup
 zlib.setup
 {
 	defines = {
-		"ZLIB_CONST",
-		"ssize_t=int"
+		"ZLIB_CONST"
 	},
 	source = path.join(depsBasePath, "zlib"),
 }