diff --git a/.travis.yml b/.travis.yml
index d83ac8d8..395bb424 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: go
 
 go:
-- '1.13'
+- '1.15'
 
 # blech, Travis downloads with capitals in DirectXMan12, which confuses go
 go_import_path: github.com/directxman12/k8s-prometheus-adapter
diff --git a/Makefile b/Makefile
index 670acc70..c9c2202d 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ OUT_DIR?=$(PWD)/_output
 OPENAPI_PATH=./vendor/k8s.io/kube-openapi
 
 VERSION?=latest
-GOIMAGE=golang:1.13
+GOIMAGE=golang:1.15
 GO111MODULE=on
 export GO111MODULE