diff --git a/Dockerfile b/Dockerfile
index 9e7cbf1..9ea891e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ COPY entrypoint.sh /entrypoint.sh
 
 RUN apk update && apk add bash git curl jq && apk add --update nodejs npm && npm install -g semver
 
-# Added Ruby and PG deps
+# Added Ruby and gem deps
 RUN apk add --no-cache build-base openssl postgresql-dev
 
 ENTRYPOINT ["/entrypoint.sh"]
diff --git a/action.yml b/action.yml
index 4949011..45a9b7f 100644
--- a/action.yml
+++ b/action.yml
@@ -1,16 +1,16 @@
-name: 'Github Tag and VERSION Bump'
-description: 'Bump and push git tag on merge'
-author: 'Nick Sjostrom'
+name: "Github Tag and VERSION Bump"
+description: "Bump and push git tag on merge"
+author: "Nick Sjostrom"
 runs:
-  using: 'docker'
-  image: 'Dockerfile'
+  using: "docker"
+  image: "Dockerfile"
 outputs:
   new_tag:
-    description: 'Generated tag'
+    description: "Generated tag"
   tag:
-    description: 'The latest tag after running this action'
+    description: "The latest tag after running this action"
   part:
-    description: 'The part of version which was bumped'
+    description: "The part of version which was bumped"
 branding:
-  icon: 'git-merge'  
-  color: 'purple'
+  icon: "git-merge"
+  color: "purple"
diff --git a/entrypoint.sh b/entrypoint.sh
index 0d6bec8..19d1198 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -15,7 +15,7 @@ suffix=${PRERELEASE_SUFFIX:-beta}
 verbose=${VERBOSE:-true}
 filename=${VERSION_FILENAME:-VERSION}
 bundle=${BUNDLE:-false}
-bundler_version=${BUNDLER_VERSION:-2.2.21}
+bundler_version=${BUNDLER_VERSION:-2.3.7}
 bundle_path=${BUNDLE_PATH:-vendor/bundle}
 
 cd ${GITHUB_WORKSPACE}/${source}
@@ -164,7 +164,7 @@ fi
 
 echo ::set-output name=tag::$new
 
-# Bump version file
+# Bump VERSION file
 git remote add github "https://$GITHUB_ACTOR:$GITHUB_TOKEN@github.com/$GITHUB_REPOSITORY.git"
 git pull github ${GITHUB_REF} --ff-only
 
@@ -184,7 +184,7 @@ then
   git add Gemfile.lock
 fi
 
-git add filename
+git add $filename
 git commit -m "Bump version to $COMMIT_TITLE"
 
 git push github HEAD:${GITHUB_REF}