diff --git a/buildkite/build_project.sh b/buildkite/build_project.sh
index fcd0615..0082600 100755
--- a/buildkite/build_project.sh
+++ b/buildkite/build_project.sh
@@ -58,6 +58,10 @@ case "$REPO_URL" in
         # the latest tag from 2023 doesn't seem to support libclang v18
         ref_to_use=master
         ;;
+    https://github.com/dlang-tour/core)
+        # the latest tag from 2023 uses a buggy openssl dub-package version
+        ref_to_use=master
+        ;;
     *)
         ;;
 esac