diff --git a/build-constraints.yaml b/build-constraints.yaml
index eae0649d..d5735882 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -913,6 +913,10 @@ packages:
     "David Raymond Christiansen <david@davidchristiansen.dk> @david-christiansen":
         - annotated-wl-pprint
 
+    "Yitz Gale gale@sefer.org @ygale"
+        - timezone-series
+        - timezone-olson
+    
     "Stackage upper bounds":
         # GHC 7.8 uppdate bound
         - haddock-api < 2.16