diff --git a/.travis.yml b/.travis.yml
index 5bdcd9ec..00064f14 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -69,7 +69,7 @@ jobs:
         - sh scripts/build_${TRAVIS_OS_NAME}_engine.sh
       after_script:
         - cd ${TRAVIS_BUILD_DIR}
-        - sh scripts/yadisk_upload.sh Xash3DFWGS-i386.AppImage xash3d-mingw.7z
+        - sh scripts/yadisk_upload.sh xash3d-osx.tar.bz2
     - # ...
       name: "Build for Windows MSVC"
       cache: ccache
diff --git a/scripts/build_linux_engine.sh b/scripts/build_linux_engine.sh
index 9fb4b945..db7796e5 100755
--- a/scripts/build_linux_engine.sh
+++ b/scripts/build_linux_engine.sh
@@ -32,7 +32,7 @@ cd $TRAVIS_BUILD_DIR
 export CC="ccache gcc"
 export CXX="ccache g++"
 ./waf configure --sdl2=$TRAVIS_BUILD_DIR/SDL2_linux --vgui=$TRAVIS_BUILD_DIR/vgui-dev --build-type=debug --enable-stb || die
-./waf build -j2 || die
+./waf build || die
 
 # Build AppImage
 scripts/build_appimage.sh
diff --git a/scripts/build_mingw_engine.sh b/scripts/build_mingw_engine.sh
index 97b7b2c6..925f4036 100755
--- a/scripts/build_mingw_engine.sh
+++ b/scripts/build_mingw_engine.sh
@@ -8,11 +8,11 @@ export CC="ccache i686-w64-mingw32-gcc"
 export CXX="ccache i686-w64-mingw32-g++"
 export CFLAGS="-static-libgcc -no-pthread -msse2" # add sse2 to workaround mingw multiple definition of MemoryBarrier bug
 export CXXFLAGS="-static-libgcc -static-libstdc++ -no-pthread -msse2"
-export LDFLAGS="-static-libgcc -static-libstdc++ -no-pthread --allow-multiple-definition" # workaround some other mingw bugs
+export LDFLAGS="-static-libgcc -static-libstdc++ -no-pthread -Wl,--allow-multiple-definition" # workaround some other mingw bugs
 export WINRC="i686-w64-mingw32-windres"
 rm -rf build # clean build directory
 ./waf configure --sdl2=$TRAVIS_BUILD_DIR/SDL2_mingw/i686-w64-mingw32/ --disable-vgui --build-type=debug --verbose || die # can't compile VGUI support on MinGW, due to differnet C++ ABI
-./waf build -j2 --verbose || die
+./waf build --verbose || die
 cp $TRAVIS_BUILD_DIR/SDL2_mingw/i686-w64-mingw32//bin/SDL2.dll . # Install SDL2
 cp vgui_support_bin/vgui_support.dll .
 cp build/engine/xash.dll .
diff --git a/scripts/build_osx_engine.sh b/scripts/build_osx_engine.sh
index 07c16513..f05df114 100755
--- a/scripts/build_osx_engine.sh
+++ b/scripts/build_osx_engine.sh
@@ -6,7 +6,7 @@
 
 cd $TRAVIS_BUILD_DIR
 python waf configure --sdl2=$HOME/Library/Frameworks/SDL2.framework/ --vgui=$TRAVIS_BUILD_DIR/vgui-dev --build-type=debug || die
-python waf build -j2 || die
+python waf build || die
 mkdir -p pkg/
 cp build/engine/libxash.dylib build/game_launch/xash3d build/mainui/libmenu.dylib build/vgui_support/libvgui_support.dylib vgui-dev/lib/vgui.dylib pkg/
 cp ~/Library/Frameworks/SDL2.framework/SDL2 pkg/libSDL2.dylib
diff --git a/scripts/build_windows_engine.sh b/scripts/build_windows_engine.sh
index 98c28e0a..69407350 100644
--- a/scripts/build_windows_engine.sh
+++ b/scripts/build_windows_engine.sh
@@ -5,7 +5,7 @@
 # Build engine
 cd $TRAVIS_BUILD_DIR
 ./waf configure --sdl2=$TRAVIS_BUILD_DIR/SDL2_VC --vgui=$TRAVIS_BUILD_DIR/vgui-dev --build-type=debug || die
-./waf build -j2 || die
+./waf build || die
 
 cp $TRAVIS_BUILD_DIR/SDL2_VC/lib/x86/SDL2.dll . # Install SDL2
 cp build/vgui_support/vgui_support.dll .
diff --git a/scripts/travis_windows_deps.sh b/scripts/travis_windows_deps.sh
index 8fba8e21..d287a9c3 100644
--- a/scripts/travis_windows_deps.sh
+++ b/scripts/travis_windows_deps.sh
@@ -1,6 +1,5 @@
-# python 2.7 cp65001 support
-python -m pip install -U pip
-pip install win-unicode-console
+# python 3.6
+choco install python3
 
 # SDL2 for VC prebuilt
 curl http://libsdl.org/release/SDL2-devel-$SDL_VERSION-VC.zip -o SDL2.zip