diff --git a/requirements.txt b/requirements.txt
index 4b34c307eb2..0b8b5431959 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -478,7 +478,7 @@ typing-extensions==4.16.0
     #   zhinst-core
     #   zhinst-qcodes
     #   zhinst-toolkit
-tzdata==2026.5
+tzdata==2026.6
     # via pandas
 uncertainties==3.2.3
     # via