diff --git a/requirements.txt b/requirements.txt
index b90c64e..cce297f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ scikit-learn~=1.5.0
 matplotlib~=3.4.1
 coremltools
 pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability
-protobuf>=3.20.2 # not directly required, pinned by Snyk to avoid a vulnerability
+protobuf>=4.25.8 # not directly required, pinned by Snyk to avoid a vulnerability
 wheel>=0.38.0 # not directly required, pinned by Snyk to avoid a vulnerability
 setuptools>=70.0.0 # not directly required, pinned by Snyk to avoid a vulnerability
 requests>=2.32.0 # not directly required, pinned by Snyk to avoid a vulnerability