diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 82897484e8..6256649f21 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
           - { NAME: "libde265 (1) / x265 / dav1d / graphics", WITH_GRAPHICS: 1, WITH_X265: 1, WITH_DAV1D: 1, WITH_LIBDE265: 1 }
           - { NAME: "libde265 (1) / x265 / aom / rav1e / graphics", WITH_GRAPHICS: 1, WITH_X265: 1, WITH_AOM: 1, WITH_RAV1E: 1, WITH_LIBDE265: 1 }
     env: ${{ matrix.env }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3
 
diff --git a/.github/workflows/cifuzz.yml b/.github/workflows/cifuzz.yml
index 59208f8693..9e9357852a 100644
--- a/.github/workflows/cifuzz.yml
+++ b/.github/workflows/cifuzz.yml
@@ -2,7 +2,7 @@ name: CIFuzz
 on: [pull_request]
 jobs:
   Fuzzing:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - name: Build Fuzzers
       id: build
diff --git a/.github/workflows/clang.yml b/.github/workflows/clang.yml
index feb5879986..c4425992b4 100644
--- a/.github/workflows/clang.yml
+++ b/.github/workflows/clang.yml
@@ -15,7 +15,7 @@ jobs:
           - { NAME: "libde265 (1) / x265 / aom / graphics", WITH_GRAPHICS: 1, WITH_X265: 1, WITH_AOM: 1, WITH_LIBDE265: 1 }
           - { NAME: "libde265 (2) / x265 / aom / graphics", WITH_GRAPHICS: 1, WITH_X265: 1, WITH_AOM: 1, WITH_LIBDE265: 2 }
     env: ${{ matrix.env }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3
 
diff --git a/.github/workflows/coverity.yml b/.github/workflows/coverity.yml
index 53da5b9697..4cd71d9764 100644
--- a/.github/workflows/coverity.yml
+++ b/.github/workflows/coverity.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   scan:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     env:
       TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}
       WITH_AOM: 1
diff --git a/.github/workflows/diagram.yml b/.github/workflows/diagram.yml
index 1901b7a27a..63ae0bf66d 100644
--- a/.github/workflows/diagram.yml
+++ b/.github/workflows/diagram.yml
@@ -6,7 +6,7 @@ on:
       - main
 jobs:
   get_data:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
diff --git a/.github/workflows/emscripten.yml b/.github/workflows/emscripten.yml
index b5d0b041e4..7c7d3fb536 100644
--- a/.github/workflows/emscripten.yml
+++ b/.github/workflows/emscripten.yml
@@ -10,7 +10,7 @@ jobs:
   emscripten:
     env:
       EMSCRIPTEN_VERSION: 1.37.26
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3
 
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index e9834ced18..1407bbb35a 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -18,7 +18,7 @@ jobs:
       WITH_X265: 1
       WITH_GRAPHICS: 1
       GO: 1
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ee7c691b6c..b5c3ae9d3f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -10,7 +10,7 @@ jobs:
   cpplint:
     env:
       CPPLINT: 1
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3
 
@@ -29,7 +29,7 @@ jobs:
   licenses:
     env:
       CHECK_LICENSES: 1
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 36d0a90544..7b21355373 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
   test:
     env:
       TESTS: 1
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v3