diff --git a/api_flask/requirements.txt b/api_flask/requirements.txt
index 48f1671..d945a7c 100644
--- a/api_flask/requirements.txt
+++ b/api_flask/requirements.txt
@@ -20,7 +20,7 @@ packaging==20.4
 pandas==1.1.3
 partd==1.1.0
 Pillow==8.1.1
-protobuf==3.13.0
+protobuf==3.15.0
 psutil==5.7.2
 pyarrow==1.0.1
 pyparsing==2.4.7
diff --git a/dashboard/requirements.txt b/dashboard/requirements.txt
index 3f78307..1ebe963 100644
--- a/dashboard/requirements.txt
+++ b/dashboard/requirements.txt
@@ -23,5 +23,5 @@ six==1.15.0
 Werkzeug==1.0.1
 requests==2.24.0
 google==3.0.0
-protobuf==3.13.0
+protobuf==3.15.0
 gunicorn==20.0.4
\ No newline at end of file
diff --git a/requirements-dev.txt b/requirements-dev.txt
index f90094d..6ac3b7d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -29,7 +29,7 @@ pandas==1.1.3
 partd==1.1.0
 Pillow==8.1.1
 plotly==4.11.0
-protobuf==3.13.0
+protobuf==3.15.0
 psutil==5.7.2
 py4j==0.10.9
 pyarrow==1.0.1