diff --git a/.github/workflows/detection-template-schema-validations.yaml b/.github/workflows/detection-template-schema-validations.yaml
index ece93382c47..78591e45237 100644
--- a/.github/workflows/detection-template-schema-validations.yaml
+++ b/.github/workflows/detection-template-schema-validations.yaml
@@ -8,7 +8,7 @@ on:
     workflow_dispatch:
 jobs:
     DetectionTemplateSchemaValidation:
-      runs-on: ubuntu-latest
+      runs-on: ubuntu-22.04
       env:
         buildConfiguration: Release
         dotnetSdkVersion: 3.1.401
diff --git a/.github/workflows/non-ascii-validations.yaml b/.github/workflows/non-ascii-validations.yaml
index ca37bec3a71..ddca1038d0b 100644
--- a/.github/workflows/non-ascii-validations.yaml
+++ b/.github/workflows/non-ascii-validations.yaml
@@ -9,7 +9,7 @@ on:
     workflow_dispatch:
 jobs:
     NonAsciiValidations:
-      runs-on: ubuntu-latest
+      runs-on: ubuntu-22.04
       env:
         buildConfiguration: Release
         dotnetSdkVersion: 3.1.401