diff --git a/requirements.txt b/requirements.txt
index 51c9660..20cab99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ Pillow @ file:///D:/bld/pillow_1621288269226/work
 prometheus-client @ file:///home/conda/feedstock_root/build_artifacts/prometheus_client_1617909193315/work
 prompt-toolkit @ file:///home/conda/feedstock_root/build_artifacts/prompt-toolkit_1616432837031/work
 proto-plus==1.18.1
-protobuf==3.17.1
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycparser @ file:///home/conda/feedstock_root/build_artifacts/pycparser_1593275161868/work