diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 786e2213..f01205f6 100644
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -34,23 +34,23 @@ jobs:
           - os: windows-2019
             target: aarch64-pc-windows-msvc
             #extraargs: --exclude livekit-api --exclude livekit-ffi # waiting for v0.17 of ring
-          - os: macos-latest
+          - os: macos-11
             target: x86_64-apple-darwin
-          - os: macos-latest
+          - os: macos-11
             target: aarch64-apple-darwin
-          - os: macos-latest
+          - os: macos-11
             target: aarch64-apple-ios
-          - os: macos-latest
+          - os: macos-11
             target: aarch64-apple-ios-sim
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: x86_64-unknown-linux-gnu
           - os: buildjet-4vcpu-ubuntu-2204-arm
             target: aarch64-unknown-linux-gnu
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: aarch64-linux-android
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: armv7-linux-androideabi
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: x86_64-linux-android
 
 
@@ -62,7 +62,7 @@ jobs:
           submodules: true
 
       - name: Install linux dependencies
-        if: ${{ matrix.os == 'ubuntu-latest' || matrix.os == 'buildjet-4vcpu-ubuntu-2204-arm'}}
+        if: ${{ matrix.os == 'ubuntu-20.04' || matrix.os == 'buildjet-4vcpu-ubuntu-2204-arm'}}
         run: |
           sudo apt update -y
           sudo apt install -y libssl-dev libx11-dev libgl1-mesa-dev libxext-dev
diff --git a/.github/workflows/ffi-builds.yml b/.github/workflows/ffi-builds.yml
index faea2147..a2d7ae47 100644
--- a/.github/workflows/ffi-builds.yml
+++ b/.github/workflows/ffi-builds.yml
@@ -40,31 +40,31 @@ jobs:
             buildargs: --no-default-features --features "native-tls" # ring 0.16 is incompatible with win aarch64
             target: aarch64-pc-windows-msvc
             name: ffi-windows-arm64
-          - os: macos-latest
+          - os: macos-11
             platform: macos
             dylib: liblivekit_ffi.dylib
             target: x86_64-apple-darwin
             macosx_deployment_target: "10.15"
             name: ffi-macos-x86_64
-          - os: macos-latest
+          - os: macos-11
             platform: macos
             dylib: liblivekit_ffi.dylib
             target: aarch64-apple-darwin
             macosx_deployment_target: "11.0" # aarch64 requires 11
             name: ffi-macos-arm64
-          - os: macos-latest
+          - os: macos-11
             platform: ios
             dylib: liblivekit_ffi.dylib
             target: aarch64-apple-ios
             iphoneos_deployment_target: "13.0"
             name: ffi-ios-arm64
-          - os: macos-latest
+          - os: macos-11
             platform: ios
             dylib: liblivekit_ffi.dylib
             target: aarch64-apple-ios-sim
             iphoneos_deployment_target: "13.0"
             name: ffi-ios-sim-arm64
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             platform: linux
             build_image: quay.io/pypa/manylinux_2_28_x86_64
             dylib: liblivekit_ffi.so
@@ -76,17 +76,17 @@ jobs:
             dylib: liblivekit_ffi.so
             target: aarch64-unknown-linux-gnu
             name: ffi-linux-arm64
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             platform: android
             dylib: liblivekit_ffi.so
             target: aarch64-linux-android
             name: ffi-android-arm64
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             platform: android
             dylib: liblivekit_ffi.so
             target: armv7-linux-androideabi
             name: ffi-android-armv7
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             platform: android
             dylib: liblivekit_ffi.so
             target: x86_64-linux-android
@@ -158,14 +158,14 @@ jobs:
 
       # zip the files
       - name: Zip artifact (Unix)
-        if: ${{ matrix.os != 'windows-latest' }}
+        if: ${{ matrix.os != 'windows-2019' }}
         run: |
           cp livekit-ffi/include/livekit_ffi.h target/${{ matrix.target }}/release/ 
           cd target/${{ matrix.target }}/release/
           zip ${{ github.workspace }}/${{ matrix.name }}.zip ${{ matrix.dylib }} livekit_ffi.h LICENSE.md
 
       - name: Zip artifact (Windows)
-        if: ${{ matrix.os == 'windows-latest' }}
+        if: ${{ matrix.os == 'windows-2019' }}
         run: |
           cp livekit-ffi/include/livekit_ffi.h target/${{ matrix.target }}/release/
           cd target/${{ matrix.target }}/release/
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 07f85c9a..281cdee9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -33,9 +33,9 @@ jobs:
           # Platform supports is limited for tests (no aarch64)
           - os: windows-2019
             target: x86_64-pc-windows-msvc
-          - os: macos-latest
+          - os: macos-11
             target: x86_64-apple-darwin
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             target: x86_64-unknown-linux-gnu
 
     name: Test (${{ matrix.target }})
@@ -47,7 +47,7 @@ jobs:
           rustup target add ${{ matrix.target }}
 
       - name: Install linux dependencies
-        if: ${{ matrix.os == 'ubuntu-latest' }}
+        if: ${{ matrix.os == 'ubuntu-20.04' }}
         run: |
           sudo apt update -y
           sudo apt install -y libssl-dev libx11-dev libgl1-mesa-dev libxext-dev