diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 9158069..666e745 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -51,38 +51,3 @@ jobs:
       run: ls ~/.ssh
     - name: git clone through SSH
       run: git clone github:shimataro/ssh-key-action.git tmp
-  call-multiple-times:
-    name: Call this action multiple times on ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os:
-        - Windows-latest
-        - macOS-latest
-        - Ubuntu-latest
-      fail-fast: false
-    steps:
-    - name: Install SSH key
-      uses: shimataro/ssh-key-action@feature/append-config-known_hosts
-      with:
-        private-key: "DUMMY-PRIVATE-KEY"
-        public-key: "DUMMY-PUBLIC-KEY"
-        known-hosts: "DUMMY-KNOWN-HOSTS"
-        config: "DUMMY-CONFIG"
-    - name: print created files
-      run: |
-        ls ~/.ssh
-        cat ~/.ssh/known_hosts
-        cat ~/.ssh/config
-    - name: Install SSH key again
-      uses: shimataro/ssh-key-action@feature/append-config-known_hosts
-      with:
-        private-key: "DUMMY-PRIVATE-KEY"
-        public-key: "DUMMY-PUBLIC-KEY"
-        known-hosts: "DUMMY-KNOWN-HOSTS"  # appended
-        config: "DUMMY-CONFIG"            # appended
-    - name: print created files again
-      run: |
-        ls ~/.ssh
-        cat ~/.ssh/known_hosts
-        cat ~/.ssh/config