diff --git a/build-constraints.yaml b/build-constraints.yaml
index a4f821b2..d4e1acc9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6942,6 +6942,9 @@ skipped-tests:
     # Uses Cabal's "library internal" stanza feature
     - s3-signer
 
+    # Tries to execute a `git` command in an external process.
+    - freckle-app # https://github.com/commercialhaskell/stackage/issues/6172
+
     # Due to cycles, which are actually just limitations in Stack right now.
     - call-stack
     - HUnit