diff --git a/Dockerfile b/Dockerfile
index 6c376a3..d99d814 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.15-alpine
+FROM golang:1.18-alpine
 
 USER nobody:nogroup
 
diff --git a/go.mod b/go.mod
index 322894b..d9085ed 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/StevenMaude/armstrong
 
-go 1.15
+go 1.18