diff --git a/dendronet_legacy/patric_application/patric_tree_storage/requirements.txt b/dendronet_legacy/patric_application/patric_tree_storage/requirements.txt
index c984c64..0c092ab 100644
--- a/dendronet_legacy/patric_application/patric_tree_storage/requirements.txt
+++ b/dendronet_legacy/patric_application/patric_tree_storage/requirements.txt
@@ -50,7 +50,7 @@ Pillow==6.2.1
 pkg-resources==0.0.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.9
-protobuf==3.7.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pydot==1.4.1
 Pygments==2.4.2