diff --git a/.github/workflows/lint_0.yml b/.github/workflows/lint_0.yml
index 1fd3198785..66536bebde 100644
--- a/.github/workflows/lint_0.yml
+++ b/.github/workflows/lint_0.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: main
+  CORE_REPO_SHA: 4ab9523001df9f750224134f6a26ea87b8f8df70
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/misc_0.yml b/.github/workflows/misc_0.yml
index e367048b72..a550b17ff3 100644
--- a/.github/workflows/misc_0.yml
+++ b/.github/workflows/misc_0.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: main
+  CORE_REPO_SHA: 4ab9523001df9f750224134f6a26ea87b8f8df70
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/test_0.yml b/.github/workflows/test_0.yml
index df74e90021..b0763c69f3 100644
--- a/.github/workflows/test_0.yml
+++ b/.github/workflows/test_0.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: main
+  CORE_REPO_SHA: 4ab9523001df9f750224134f6a26ea87b8f8df70
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/test_1.yml b/.github/workflows/test_1.yml
index ce4402755e..1c51d225fd 100644
--- a/.github/workflows/test_1.yml
+++ b/.github/workflows/test_1.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: main
+  CORE_REPO_SHA: 4ab9523001df9f750224134f6a26ea87b8f8df70
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w