diff --git a/requirements.txt b/requirements.txt
index 9432476..4fb3977 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ MarkupSafe==1.1.1
 numpy==1.17.1
 oauthlib==3.2.0
 poyo==0.5.0
-protobuf==3.19.4
+protobuf==3.19.5
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 PyJWT==1.7.1
diff --git a/setup.py b/setup.py
index b38af70..1323736 100644
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@
         'numpy==1.17.1',
         'oauthlib==3.2.0',
         'poyo==0.5.0',
-        'protobuf==3.19.4',
+        'protobuf==3.19.5',
         'pyasn1==0.4.8',
         'pyasn1-modules==0.2.8',
         'PyJWT==1.7.1',