diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 565cf8cd..96903fc7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,7 +38,6 @@ jobs:
       matrix:
         stable: [true]
         crystal:
-          - 1.3.2
           - 1.4.1
           - 1.5.1
           - 1.6.2