diff --git a/galaxy_mergers/requirements.txt b/galaxy_mergers/requirements.txt
index 5b1d3f22..aaad0706 100644
--- a/galaxy_mergers/requirements.txt
+++ b/galaxy_mergers/requirements.txt
@@ -28,7 +28,7 @@ oauthlib==3.1.0
 opt-einsum==3.3.0
 Pillow==8.1.0
 pkg-resources==0.0.0
-protobuf==3.15.3
+protobuf==4.25.8
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyerfa==1.7.2