diff --git a/.github/workflows/verify-on-macos.yml b/.github/workflows/verify-on-macos.yml
index 7f02b6f..240630a 100644
--- a/.github/workflows/verify-on-macos.yml
+++ b/.github/workflows/verify-on-macos.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: macos-latest
     steps:
     - name: Install SSH key
-      uses: shimataro/ssh-key-action@development
+      uses: .
       with:
         private-key: ${{ secrets.SSH_KEY }}
         known-hosts: ${{ secrets.KNOWN_HOSTS }} # optional
@@ -21,7 +21,7 @@ jobs:
     runs-on: macos-latest
     steps:
     - name: Install SSH key
-      uses: shimataro/ssh-key-action@development
+      uses: .
       with:
         private-key: ${{ secrets.SSH_KEY }}
         known-hosts: ${{ secrets.KNOWN_HOSTS }} # optional
diff --git a/.github/workflows/verify-on-ubuntu.yml b/.github/workflows/verify-on-ubuntu.yml
index 604b03f..09d6318 100644
--- a/.github/workflows/verify-on-ubuntu.yml
+++ b/.github/workflows/verify-on-ubuntu.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Install SSH key
-      uses: shimataro/ssh-key-action@development
+      uses: .
       with:
         private-key: ${{ secrets.SSH_KEY }}
         known-hosts: ${{ secrets.KNOWN_HOSTS }} # optional
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Install SSH key
-      uses: shimataro/ssh-key-action@development
+      uses: .
       with:
         private-key: ${{ secrets.SSH_KEY }}
         known-hosts: ${{ secrets.KNOWN_HOSTS }} # optional
diff --git a/.github/workflows/verify-on-ubuntu1604.yml b/.github/workflows/verify-on-ubuntu1604.yml
index 5484a13..11a8ca7 100644
--- a/.github/workflows/verify-on-ubuntu1604.yml
+++ b/.github/workflows/verify-on-ubuntu1604.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-16.04
     steps:
     - name: Install SSH key
-      uses: shimataro/ssh-key-action@development
+      uses: .
       with:
         private-key: ${{ secrets.SSH_KEY }}
         known-hosts: ${{ secrets.KNOWN_HOSTS }} # optional
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-16.04
     steps:
     - name: Install SSH key
-      uses: shimataro/ssh-key-action@development
+      uses: .
       with:
         private-key: ${{ secrets.SSH_KEY }}
         known-hosts: ${{ secrets.KNOWN_HOSTS }} # optional