diff --git a/.github/workflows/build-and-test-differential.yaml b/.github/workflows/build-and-test-differential.yaml
index 1eddcc9b0..6e8ebef57 100644
--- a/.github/workflows/build-and-test-differential.yaml
+++ b/.github/workflows/build-and-test-differential.yaml
@@ -19,11 +19,6 @@ jobs:
       - name: Remove exec_depend
         uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
 
-      - name: Register AutonomouStuff repository
-        uses: autowarefoundation/autoware-github-actions/register-autonomoustuff-repository@tier4/proposal
-        with:
-          rosdistro: galactic
-
       - name: Get modified packages
         id: get-modified-packages
         uses: autowarefoundation/autoware-github-actions/get-modified-packages@tier4/proposal
@@ -66,11 +61,6 @@ jobs:
       - name: Remove exec_depend
         uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
 
-      - name: Register AutonomouStuff repository
-        uses: autowarefoundation/autoware-github-actions/register-autonomoustuff-repository@tier4/proposal
-        with:
-          rosdistro: galactic
-
       - name: Get modified packages
         id: get-modified-packages
         uses: autowarefoundation/autoware-github-actions/get-modified-packages@tier4/proposal
diff --git a/.github/workflows/build-and-test.yaml b/.github/workflows/build-and-test.yaml
index 880f47192..1e422cc38 100644
--- a/.github/workflows/build-and-test.yaml
+++ b/.github/workflows/build-and-test.yaml
@@ -18,11 +18,6 @@ jobs:
       - name: Remove exec_depend
         uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
 
-      - name: Register AutonomouStuff repository
-        uses: autowarefoundation/autoware-github-actions/register-autonomoustuff-repository@tier4/proposal
-        with:
-          rosdistro: galactic
-
       - name: Get self packages
         id: get-self-packages
         uses: autowarefoundation/autoware-github-actions/get-self-packages@tier4/proposal