diff --git a/build-constraints.yaml b/build-constraints.yaml
index ef3983d5..6784fcbd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4729,7 +4729,6 @@ packages:
 
       # https://github.com/commercialhaskell/stackage/issues/5218
       - unliftio-core < 0.2
-      - fb < 2.0.1
 
       # https://github.com/commercialhaskell/stackage/issues/new
       - mini-egison <1.0.0