diff --git a/.github/workflows/lint_0.yml b/.github/workflows/lint_0.yml
index 0f2e1b5dc8..cc7cfd536f 100644
--- a/.github/workflows/lint_0.yml
+++ b/.github/workflows/lint_0.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: opentelemetrybot/update-version-to-1.31.0.dev-0.52b0.dev
+  CORE_REPO_SHA: main
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/misc_0.yml b/.github/workflows/misc_0.yml
index 63b58049f3..2e59715660 100644
--- a/.github/workflows/misc_0.yml
+++ b/.github/workflows/misc_0.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: opentelemetrybot/update-version-to-1.31.0.dev-0.52b0.dev
+  CORE_REPO_SHA: main
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/test_0.yml b/.github/workflows/test_0.yml
index b0dadd30c2..b43a46b94f 100644
--- a/.github/workflows/test_0.yml
+++ b/.github/workflows/test_0.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: opentelemetrybot/update-version-to-1.31.0.dev-0.52b0.dev
+  CORE_REPO_SHA: main
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/test_1.yml b/.github/workflows/test_1.yml
index a18101be8d..f2686cfe91 100644
--- a/.github/workflows/test_1.yml
+++ b/.github/workflows/test_1.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: opentelemetrybot/update-version-to-1.31.0.dev-0.52b0.dev
+  CORE_REPO_SHA: main
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w
 
diff --git a/.github/workflows/test_2.yml b/.github/workflows/test_2.yml
index df266f0737..96ebfba82a 100644
--- a/.github/workflows/test_2.yml
+++ b/.github/workflows/test_2.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  CORE_REPO_SHA: opentelemetrybot/update-version-to-1.31.0.dev-0.52b0.dev
+  CORE_REPO_SHA: main
   CONTRIB_REPO_SHA: main
   PIP_EXISTS_ACTION: w