diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index defaa11c32..621b1dc137 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -205,6 +205,16 @@ jobs:
           cd $LibrariesPath
           sudo cp -R opus-cache/. /
 
+      - name: Rnnoise.
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/desktop-app/rnnoise.git
+          mkdir -p rnnoise/out/Debug
+          cd rnnoise/out/Debug
+          cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug ../..
+          ninja
+
       - name: Libiconv cache.
         id: cache-libiconv
         uses: actions/cache@v2
@@ -240,7 +250,7 @@ jobs:
 
           git clone $GIT/FFmpeg/FFmpeg.git ffmpeg
           cd ffmpeg
-          git checkout release/4.2
+          git checkout release/4.4
           CFLAGS=`freetype-config --cflags`
           LDFLAGS=`freetype-config --libs`
           PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig:/usr/lib/pkgconfig:/usr/X11/lib/pkgconfig
@@ -317,7 +327,6 @@ jobs:
           --enable-decoder=pcm_u32be \
           --enable-decoder=pcm_u32le \
           --enable-decoder=pcm_u8 \
-          --enable-decoder=pcm_zork \
           --enable-decoder=vorbis \
           --enable-decoder=wavpack \
           --enable-decoder=wmalossless \
@@ -490,6 +499,7 @@ jobs:
           cmake -G Ninja \
           -DCMAKE_BUILD_TYPE=Debug \
           -DTG_OWT_SPECIAL_TARGET=mac \
+          -DTG_OWT_BUILD_AUDIO_BACKENDS=OFF \
           -DTG_OWT_LIBJPEG_INCLUDE_PATH=$PREFIX/include \
           -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_$OPENSSL_VER/include \
           -DTG_OWT_OPUS_INCLUDE_PATH=$PREFIX/include/opus \
diff --git a/docs/building-xcode.md b/docs/building-xcode.md
index a22bf97bb1..d1458c884d 100644
--- a/docs/building-xcode.md
+++ b/docs/building-xcode.md
@@ -112,12 +112,12 @@ Go to ***BuildPath*** and run
     cd out
     mkdir Debug
     cd Debug
-    cmake -G Ninja  -DCMAKE_BUILD_TYPE=Debug ../..
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug ../..
     ninja
     cd ..
     mkdir Release
     cd Release
-    cmake -G Ninja  -DCMAKE_BUILD_TYPE=Release ../..
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release ../..
     ninja
     cd ../../..