diff --git a/dash-requirements.txt b/dash-requirements.txt
index 2b92216..60b59df 100644
--- a/dash-requirements.txt
+++ b/dash-requirements.txt
@@ -83,7 +83,7 @@ plotly @ file:///home/conda/feedstock_root/build_artifacts/plotly_1626369292129/
 plotly-express==0.4.1
 prometheus-client==0.11.0
 prompt-toolkit @ file:///home/conda/feedstock_root/build_artifacts/prompt-toolkit_1623977816122/work
-protobuf==3.17.3
+protobuf==3.18.3
 ptyprocess @ file:///home/conda/feedstock_root/build_artifacts/ptyprocess_1609419310487/work/dist/ptyprocess-0.7.0-py2.py3-none-any.whl
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
diff --git a/requirements.txt b/requirements.txt
index 2a4f4f8..7589800 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -57,7 +57,7 @@ pickleshare==0.7.5
 Pillow==8.3.1
 plotly==5.1.0
 prompt-toolkit==3.0.19
-protobuf==3.17.3
+protobuf==3.18.3
 ptyprocess==0.7.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8