Switch CI to go1.15

diff --git a/.circleci/config.yml b/.circleci/config.yml
index f6f165f5e6095dde4664f3663160d3ad96e6d7ec..db0931d34f26ddc6cc06e3dc166cc29c7b69f7d3 100644 (file)
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,7 +6,7 @@ jobs:
     # docker:
     #   - image: cimg/go:1.13
     environment:
-      GO_BRANCH: release-branch.go1.14
+      GO_BRANCH: release-branch.go1.15
     steps:
       - run: echo $CIRCLE_WORKING_DIRECTORY
       - run: echo $PWD