diff --git a/build-constraints.yaml b/build-constraints.yaml
index 12f280a6..c5bdec53 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3222,9 +3222,6 @@ packages:
         - text-show-instances  < 3.6.1
         - aeson-compat < 0.3.7
 
-        # https://github.com/fpco/stackage/issues/2561
-        - timezone-series < 0.1.8
-
         # https://github.com/fpco/stackage/issues/2562
         - trifecta < 1.7
 
@@ -3337,6 +3334,10 @@ package-flags:
     functor-classes-compat:
         containers: false
 
+    timezone-series:
+        time_1_6_and_1_7: true
+        time_pre_1_6: false
+
 # end of package-flags
 
 # Special configure options for individual packages