diff --git a/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.dll b/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.dll
index 1cc56f53f8..dcf6a2fca6 100644
Binary files a/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.dll and b/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.dll differ
diff --git a/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.lib b/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.lib
index 3f2416ce41..7763f7e4e6 100644
Binary files a/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.lib and b/doomsday/external/zlib/lib/msvc2015/x64/zlibwapi.lib differ
diff --git a/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.dll b/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.dll
index 1857c78748..c7c87cd5c1 100644
Binary files a/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.dll and b/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.dll differ
diff --git a/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.lib b/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.lib
index 7be6373450..162e447380 100644
Binary files a/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.lib and b/doomsday/external/zlib/lib/msvc2015/x86/zlibwapi.lib differ