diff --git a/constraints/constraints-3.7.txt b/constraints/constraints-3.7.txt
index 9d8f835..98e01ba 100644
--- a/constraints/constraints-3.7.txt
+++ b/constraints/constraints-3.7.txt
@@ -19,7 +19,7 @@ rfc3339-validator==0.1.4
 rfc3986-validator==0.1.1
 six==1.17.0
 typing_extensions==4.7.1
-tzdata==2026.5
+tzdata==2026.6
 uri-template==1.3.0
 uritools==4.0.3
 webcolors==1.13