diff --git a/.github/workflows/test-lang-csharp-ARM.yml b/.github/workflows/test-lang-csharp-ARM.yml
index 0d1afd7f200..501a56b9c9b 100644
--- a/.github/workflows/test-lang-csharp-ARM.yml
+++ b/.github/workflows/test-lang-csharp-ARM.yml
@@ -34,7 +34,7 @@ concurrency:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
 
@@ -66,7 +66,7 @@ jobs:
         run: ./build.sh test
 
   interop:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
 
diff --git a/.github/workflows/test-lang-csharp.yml b/.github/workflows/test-lang-csharp.yml
index 4efc70f3ff8..3e13e68772f 100644
--- a/.github/workflows/test-lang-csharp.yml
+++ b/.github/workflows/test-lang-csharp.yml
@@ -34,7 +34,7 @@ concurrency:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
 
@@ -66,7 +66,7 @@ jobs:
         run: ./build.sh test
 
   interop:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4