diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7cda0341..62fba2a6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1896,6 +1896,7 @@ packages:
         - should-not-typecheck
 
     "Mihaly Barasz klao@nilcons.com @klao":
+        - lens-datetime
         - tz
         - tzdata