diff --git a/Dockerfile b/Dockerfile
index 1837801..b1e527a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # STEP 1 build executable binary
-FROM golang:1.17.1-alpine3.13@sha256:bd3c3710755f637c6ec64b317a22e58f048ddefe622fb03073935ee9073ff99f AS builder
+FROM golang:1.17.3-alpine3.13@sha256:8840854a5cd71bd57711fa5d80fe5c727b4f96ad039a0f62b25cc9d2e3cc2886 AS builder
 
 ENV MORTY_VERSION="f5bff1e285d3f973cacf73318e55175edafd633f"