diff --git a/Dockerfile b/Dockerfile
index 04b57ef..2626e25 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.16.5-alpine
+FROM golang:1.16.6-alpine
 
 RUN apk add git
 
@@ -13,4 +13,4 @@ COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
-RUN go install -v
\ No newline at end of file
+RUN go install -v
diff --git a/tests/multiple-ports/Dockerfile b/tests/multiple-ports/Dockerfile
index 4341e33..bfe8d41 100644
--- a/tests/multiple-ports/Dockerfile
+++ b/tests/multiple-ports/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.16.5-alpine
+FROM golang:1.16.6-alpine
 
 CMD ["multiple-ports"]
 EXPOSE 80 443