diff --git a/requirements.txt b/requirements.txt
index d3d82932c6b..d31f7f50cd8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -515,7 +515,7 @@ xarray==2026.2.0
     #   cf-xarray
     #   qcodes
     #   qcodes-loop
-zhinst-core==26.1.2.4
+zhinst-core==26.1.3.9
     # via
     #   zhinst-toolkit
     #   zhinst-utils