diff --git a/build-constraints.yaml b/build-constraints.yaml
index 58652bfc..3ea76982 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -907,9 +907,6 @@ packages:
         # https://github.com/Happstack/happstack-server/issues/6
         - happstack-server < 7.4.3
 
-        # https://github.com/fpco/stackage/issues/529
-        - fixed-vector < 0.8
-
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: