diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 9665271..31a8d9f 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -29,8 +29,8 @@ jobs:
         run: |
           IMAGE_ID=${GITHUB_REPOSITORY,,}
           IMAGE_NAME=${IMAGE_ID#*/}
-          echo ::set-output name=image_id::$IMAGE_ID
-          echo ::set-output name=image_name::$IMAGE_NAME
+          echo "image_id=$IMAGE_ID" >> $GITHUB_ENV
+          echo "image_name=$IMAGE_NAME" >> $GITHUB_ENV
           docker build . --file Dockerfile -t $IMAGE_NAME
 
       - name: Login to Github Container Registry
@@ -43,10 +43,10 @@ jobs:
       - name: Tag image
         id: tag_image
         run: |
-          IMAGE_NAME=${{ steps.build_image.outputs.image_name }}
-          IMAGE_ID=ghcr.io/${{ steps.build_image.outputs.image_id }}
+          IMAGE_NAME=${{ env.image_name }}
+          IMAGE_ID=ghcr.io/${{ env.image_id }}
           echo IMAGE_ID=$IMAGE_ID
-          echo ::set-output name=image_id::$IMAGE_ID
+          echo "image_id=$IMAGE_ID" >> $GITHUB_ENV
 
           # Strip git ref prefix from version
           VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
@@ -55,7 +55,7 @@ jobs:
           # if version is master, set version to dev
           [[ "$VERSION" == "master" ]] && VERSION=dev
           echo VERSION=$VERSION
-          echo ::set-output name=version::$VERSION
+          echo "version=$VERSION" >> $GITHUB_ENV
 
           # tag dev or x.x.x
           docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
@@ -64,8 +64,8 @@ jobs:
 
       - name: Push images to registry
         run: |
-          VERSION=${{ steps.tag_image.outputs.version }}
-          IMAGE_ID=${{ steps.tag_image.outputs.image_id }}
+          VERSION=${{ env.version }}
+          IMAGE_ID=${{ env.image_id }}
 
           [[ "$VERSION" != "dev" ]] && docker push $IMAGE_ID:latest || true
           docker push $IMAGE_ID:$VERSION
@@ -77,4 +77,4 @@ jobs:
           url: ${{ secrets.DEPLOY_URL }}
           method: POST
           headers: '{"Authentication": "Token ${{ secrets.DEPLOY_TOKEN }}"}'
-          payload: '{"version": "${{ steps.tag_image.outputs.version }}"}'
+          payload: '{"version": "${{ env.version }}"}'
diff --git a/exts/dbconv.py b/exts/dbconv.py
index 37eaedd..50f1513 100644
--- a/exts/dbconv.py
+++ b/exts/dbconv.py
@@ -187,7 +187,7 @@ def _calc_volt(db: float, ref: float):
 
 # testing code
 if __name__ == "__main__":
-    while(True):
+    while True:
         try:
             ip = input("> ").split()
             initial = float(ip[0])