diff --git a/build-constraints.yaml b/build-constraints.yaml
index cb2665a5..6128ed1c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5456,6 +5456,7 @@ expected-benchmark-failures:
     - cryptohash # https://github.com/vincenthz/hs-cryptohash/pull/43
     - http2
     - lz4 # https://github.com/fpco/stackage/issues/3510
+    - raaz # https://github.com/commercialhaskell/stackage/issues/4766
     - thyme
     - xmlgen # https://github.com/skogsbaer/xmlgen/issues/6