diff --git a/jupyter-scipy/requirements.txt b/jupyter-scipy/requirements.txt
index 51fdbbce..a229dd1f 100644
--- a/jupyter-scipy/requirements.txt
+++ b/jupyter-scipy/requirements.txt
@@ -23,7 +23,7 @@ numexpr==2.10.0
 openpyxl==3.1.4
 pandas==2.2.2
 patsy==0.5.6
-protobuf==3.20.3
+protobuf==5.27.1
 scikit-image==0.23.2
 scikit-learn==1.5.0
 scipy==1.13.1