diff --git a/.github/workflows/lint-go.yaml b/.github/workflows/lint-go.yaml
index 3a1abb3..4ff186d 100644
--- a/.github/workflows/lint-go.yaml
+++ b/.github/workflows/lint-go.yaml
@@ -47,7 +47,11 @@ jobs:
       - name: Verify commit signed-off
         run: |
           set -eu -o pipefail
-          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          else
+            COMMITS="${{ github.sha }}"
+          fi
           for commit in $COMMITS; do
             commit_msg=$(git log --format=%B -n 1 $commit)
             if ! echo "$commit_msg" | grep -qE "^Signed-off-by: .+ <.+@.+>$"; then
diff --git a/.github/workflows/test-go.yaml b/.github/workflows/test-go.yaml
index 7789330..0181068 100644
--- a/.github/workflows/test-go.yaml
+++ b/.github/workflows/test-go.yaml
@@ -34,7 +34,11 @@ jobs:
       - name: Build for every commit
         run: |
           set -eu -o pipefail
-          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          else
+            COMMITS="${{ github.sha }}"
+          fi
           for commit in $COMMITS ; do
             git checkout $commit || exit 1
             go build ./...
@@ -66,7 +70,11 @@ jobs:
       - name: Run unit test for every commit
         run: |
           set -eu -o pipefail
-          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          else
+            COMMITS="${{ github.sha }}"
+          fi
           for commit in $COMMITS ; do
             git checkout $commit || exit 1
             make test
@@ -98,7 +106,11 @@ jobs:
       - name: Run CLI tests for every commit
         run: |
           set -eu -o pipefail
-          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          else
+            COMMITS="${{ github.sha }}"
+          fi
           for commit in $COMMITS ; do
             git checkout $commit || exit 1
             make cli-test clean