diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6b528756..63de81cc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -220,7 +220,7 @@ packages:
 
     "Philipp Middendorf <pmidden@secure.mailbox.org>":
         # https://github.com/fpco/stackage/issues/1305
-        - clock < 0.5.2
+        - clock
 
     "Stefan Wehr <wehr@factisresearch.com>":
         - HTF