diff --git a/pitfall/.github/workflows/ci.yml b/pitfall/.github/workflows/ci.yml
index 05d9c52a..f62b3eb5 100644
--- a/pitfall/.github/workflows/ci.yml
+++ b/pitfall/.github/workflows/ci.yml
@@ -14,14 +14,6 @@ jobs:
         # CS builds are only provided for versions 7.4 and up so avoid
         # running the job for prior versions.
         exclude:
-          - {racket-version: "6.6",    racket-variant: "CS"}
-          - {racket-version: "6.7",    racket-variant: "CS"}
-          - {racket-version: "6.8",    racket-variant: "CS"}
-          - {racket-version: "6.9",    racket-variant: "CS"}
-          - {racket-version: "6.10.1", racket-variant: "CS"}
-          - {racket-version: "6.11",   racket-variant: "CS"}
-          - {racket-version: "6.12",   racket-variant: "CS"}
-          - {racket-version: "7.0",    racket-variant: "CS"}
           - {racket-version: "7.1",    racket-variant: "CS"}
           - {racket-version: "7.2",    racket-variant: "CS"}
           - {racket-version: "7.3",    racket-variant: "CS"}