diff --git a/build-constraints.yaml b/build-constraints.yaml
index c81b2601..11763470 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1701,6 +1701,7 @@ packages:
         - cereal < 0.5
         - messagepack < 0.5.0
         - messagepack-rpc < 0.5.1
+        - DRBG < 0.5.5
 
         # https://github.com/fpco/stackage/issues/957
         - exact-pi < 0.3