diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8e24fcf..5f44ac2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -20,7 +20,10 @@ jobs:
       # Specify a version that works for now.
         lisp: [ sbcl-bin, ccl-bin, ecl ]
         os: [ windows-latest, ubuntu-latest, macos-latest ]
-
+        exclude: 
+          - os: windows-latest
+            lisp: ecl
+      
     # run the job on every combination of "lisp" and "os" above
     runs-on: ${{ matrix.os }}