diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e10be8a..201e818a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,10 +38,10 @@ jobs:
       matrix:
         stable: [true]
         crystal:
-          - 1.2.2
           - 1.3.2
-          - 1.4.0
-          - 1.5.0
+          - 1.4.1
+          - 1.5.1
+          - 1.6.1
         include:
           - crystal: nightly
             stable: false