diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 47e3fd6..c41cfcd 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -10,7 +10,6 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.5'
           - '1.6'
           - '1'
         os: