diff --git a/build-constraints.yaml b/build-constraints.yaml
index d9d3d9fe..8c02d39c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -840,9 +840,6 @@ packages:
         # https://github.com/fpco/stackage/issues/483
         - rethinkdb-client-driver < 0.0.15
 
-        # https://github.com/fpco/stackage/issues/485
-        - parsec < 3.1.9
-
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: