diff --git a/Dockerfile.bats b/Dockerfile.bats
index 54605d9..ec78373 100644
--- a/Dockerfile.bats
+++ b/Dockerfile.bats
@@ -1,5 +1,5 @@
-FROM bats/bats:v1.1.0
-RUN apk --no-cache add ca-certificates
-COPY bin/kubeconform /bin/
-COPY acceptance.bats /acceptance.bats
-COPY fixtures /fixtures
+FROM bats/bats:v1.2.1
+RUN apk --no-cache add ca-certificates parallel
+COPY bin/kubeconform /code/bin/
+COPY acceptance.bats /code/acceptance.bats
+COPY fixtures /code/fixtures
diff --git a/Makefile b/Makefile
index 51f4ac7..a166fb7 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ build-bats:
 	docker build -t bats -f Dockerfile.bats .
 
 docker-acceptance: build-bats
-	docker run -t bats acceptance.bats
+	docker run -t bats -p acceptance.bats
 
 release:
 	docker run -e GITHUB_TOKEN -t -v $$PWD:/go/src/github.com/yannh/kubeconform -w /go/src/github.com/yannh/kubeconform goreleaser/goreleaser:v0.138 goreleaser release --rm-dist
\ No newline at end of file