diff --git a/.travis.yml b/.travis.yml
index 871150c..c79105c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: go
 go:
-  - 1.12
+  - 1.13
   - 1.x
   - tip
 before_install:
diff --git a/go.mod b/go.mod
index cef50ea..f811bea 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/cenkalti/backoff/v4
 
-go 1.12
+go 1.13