diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 4de11da..94ac012 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -17,14 +17,14 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        lisp: [sbcl-bin, ccl-bin/1.12.2, ecl/23.9.9]
+        lisp: [sbcl-bin, ccl-bin/1.12.2, ecl/24.5.10]
         os: [ubuntu-latest, windows-latest, macos-latest]
         quicklisp-dist:
           - quicklisp
           - ultralisp
         exclude:
           - os: windows-latest
-            lisp: ecl/23.9.9
+            lisp: ecl/24.5.10
           - os: windows-latest
             lisp: ccl-bin/1.12.2
     env: