diff --git a/Dockerfile b/Dockerfile
index 9f95c64..37f617d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19.0-alpine
+FROM golang:1.20.5-alpine
 
 RUN apk add git
 
diff --git a/go.mod b/go.mod
index 8e7a313..b30c2c0 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/sensiblecodeio/hanoverd
 
-go 1.19
+go 1.20
 
 require (
 	github.com/docker/docker v20.10.17+incompatible
diff --git a/tests/multiple-ports/Dockerfile b/tests/multiple-ports/Dockerfile
index 1e4f511..024380e 100644
--- a/tests/multiple-ports/Dockerfile
+++ b/tests/multiple-ports/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.19.0-alpine
+FROM golang:1.20.5-alpine
 
 CMD ["multiple-ports"]
 EXPOSE 80 443