diff --git a/Dockerfile b/Dockerfile
index 9f982e4..f78c534 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@
 # limitations under the License.
 #
 
-FROM alpine:3.12.2
+FROM alpine:3.13.1
 MAINTAINER Josef Cacek
 
 RUN apk add -U --no-cache bash curl openssl ruby ruby-io-console ruby-json git py-pip \