diff --git a/requirements.txt b/requirements.txt
index c31f600..f0843ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ opencv-python==4.2.0.34
 pandas==0.24.2
 pbr==5.4.5
 Pillow==6.1.0
-protobuf==3.12.2
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycparser==2.20
diff --git a/sentinel_download/requirements.txt b/sentinel_download/requirements.txt
index c31f600..f0843ec 100644
--- a/sentinel_download/requirements.txt
+++ b/sentinel_download/requirements.txt
@@ -50,7 +50,7 @@ opencv-python==4.2.0.34
 pandas==0.24.2
 pbr==5.4.5
 Pillow==6.1.0
-protobuf==3.12.2
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycparser==2.20