diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6a1ae61a..9f264a8a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,7 +3,7 @@ jobs:
   test:
     working_directory: /go/src/github.com/goccy/go-yaml
     docker:
-    - image: circleci/golang:1.12
+    - image: circleci/golang:1.15
       environment:
         GO111MODULE: "on"
     steps: