diff --git a/.github/workflows/build-toolchains.yml b/.github/workflows/build-toolchains.yml
index acf93962..46792980 100644
--- a/.github/workflows/build-toolchains.yml
+++ b/.github/workflows/build-toolchains.yml
@@ -18,25 +18,25 @@ jobs:
     runs-on: ${{ matrix.host }}
     strategy:
       matrix:
-        host: [ "ubuntu-latest", "macos-latest" ]
+        host: ["ubuntu-22.04", "macos-latest"]
         sample: ${{ fromJSON(inputs.samples) }}
         exclude:
           # Exclude both glibc & uClibc ARC Linux toolchains as
           # there's no known use of ARC Linux toolchains on Mac,
           # and anyway glibc fails to build for ARC700,
           # see https://github.com/crosstool-ng/crosstool-ng/pull/1456#issuecomment-779150246
-          - { host: "macos-latest", sample: "arc-multilib-linux-gnu" }
-          - { host: "macos-latest", sample: "arc-multilib-linux-uclibc" }
+          - {host: "macos-latest", sample: "arc-multilib-linux-gnu"}
+          - {host: "macos-latest", sample: "arc-multilib-linux-uclibc"}
 
           # Exclude mips*-*-linux-gnu because of <byteswap.h> usage in
           # elf-entry.c for linux kernel headers.  <byteswap.h> is a GNU
           # extension and doesn't exist on MacOS X
-          - { host: "macos-latest", sample: "mips-unknown-linux-gnu" }
-          - { host: "macos-latest", sample: "mips64-unknown-linux-gnu" }
+          - {host: "macos-latest", sample: "mips-unknown-linux-gnu"}
+          - {host: "macos-latest", sample: "mips64-unknown-linux-gnu"}
 
           # Exclude x86_64-w64-mingw32,x86_64-pc-linux-gnu because it crashes on m4 build with
           # a Segmentation fault
-          - { host: "macos-latest", sample: "x86_64-w64-mingw32,x86_64-pc-linux-gnu" }
+          - {host: "macos-latest", sample: "x86_64-w64-mingw32,x86_64-pc-linux-gnu"}
     steps:
       - name: create case sensitive workspace volume for macOS
         if: ${{ runner.os == 'macOS' }}
diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index 2d6634ed..c5696f5f 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ${{ matrix.host }}
     strategy:
       matrix:
-        host: [ "ubuntu-latest", "macos-latest" ]
+        host: ["ubuntu-22.04", "macos-latest"]
     steps:
       - name: "clone"
         uses: actions/checkout@v3
@@ -51,7 +51,7 @@ jobs:
     runs-on: ${{ matrix.host }}
     strategy:
       matrix:
-        host: [ "ubuntu-latest" ]
+        host: ["ubuntu-22.04"]
     steps:
       - name: "download ct-ng"
         uses: actions/download-artifact@v3
@@ -89,7 +89,7 @@ jobs:
           path: src.tar
 
   toolchains:
-    needs: [ crosstool, tarballs ]
+    needs: [crosstool, tarballs]
     uses: ./.github/workflows/build-toolchains.yml
     with:
       samples: >-
@@ -122,7 +122,7 @@ jobs:
         ]
 
   canadian-cross:
-    needs: [ toolchains ]
+    needs: [toolchains]
     uses: ./.github/workflows/build-toolchains.yml
     with:
       samples: >-