diff --git a/build-constraints.yaml b/build-constraints.yaml
index ce281143..1490844a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3238,6 +3238,9 @@ expected-haddock-failures:
     - classy-prelude-yesod
     - hledger-web
 
+    # Runs out of memory
+    - stratosphere
+
 # end of expected-haddock-failures
 
 # Benchmarks which should not be built. Note that Stackage builds benchmarks but does not run them.