diff --git a/fdroid-publish/action.yml b/fdroid-publish/action.yml
index ce536b0..5ab71ee 100644
--- a/fdroid-publish/action.yml
+++ b/fdroid-publish/action.yml
@@ -17,13 +17,12 @@ runs:
 
     - name: Sign APK
       shell: bash
-      env:
-        KEYSTORE_B64: ${{ vars.ANDROID_KEYSTORE_B64 }}
-        KEYSTORE_PASS: ${{ vars.ANDROID_KEYSTORE_PASSWORD }}
-        KEY_ALIAS: ${{ vars.ANDROID_KEY_ALIAS }}
-        KEY_PASS: ${{ vars.ANDROID_KEY_PASSWORD }}
       run: |
         set -euo pipefail
+        export KEYSTORE_B64="${{ vars.ANDROID_KEYSTORE_B64 }}"
+        export KEYSTORE_PASS="${{ vars.ANDROID_KEYSTORE_PASSWORD }}"
+        export KEY_ALIAS="${{ vars.ANDROID_KEY_ALIAS }}"
+        export KEY_PASS="${{ vars.ANDROID_KEY_PASSWORD }}"
         echo "Signing ${{ inputs.apk_path }}"
         echo "$KEYSTORE_B64" | base64 -d > /tmp/release.keystore
         curl -sL -o /tmp/uber-apk-signer.jar \
@@ -41,12 +40,11 @@ runs:
 
     - name: Push to F-Droid repo and rebuild index
       shell: bash
-      env:
-        FROID_HOST: ${{ vars.FROID_HOST }}
-        FROID_SSH_USER: ${{ vars.FROID_SSH_USER }}
-        FROID_SSH_KEY: ${{ vars.FROID_SSH_KEY }}
       run: |
         set -euo pipefail
+        export FROID_HOST="${{ vars.FROID_HOST }}"
+        export FROID_SSH_USER="${{ vars.FROID_SSH_USER }}"
+        export FROID_SSH_KEY="${{ vars.FROID_SSH_KEY }}"
         mkdir -p ~/.ssh && chmod 700 ~/.ssh
         echo "$FROID_SSH_KEY" > ~/.ssh/froid_ci && chmod 600 ~/.ssh/froid_ci
         APK=$(ls /tmp/apk-out/*.apk | head -1)