diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2cf662c..88ca86b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        go: ['1.11', '1.12', '1.13', '1.14']
+        go: ['1.11', '1.12', '1.13', '1.14', '1.15']
     env:
       VERBOSE: 1
       GOFLAGS: -mod=readonly