diff --git a/requirements/3.10.txt b/requirements/3.10.txt
index 5ae26cd97..52c1c72f2 100644
--- a/requirements/3.10.txt
+++ b/requirements/3.10.txt
@@ -141,7 +141,7 @@ pika==1.2.1
     # via testcontainers
 pluggy==1.0.0
     # via pytest
-protobuf==3.20.1
+protobuf==3.19.5
     # via
     #   google-api-core
     #   googleapis-common-protos
diff --git a/requirements/3.6.txt b/requirements/3.6.txt
index 0acd6776f..a2eb386f5 100644
--- a/requirements/3.6.txt
+++ b/requirements/3.6.txt
@@ -140,7 +140,7 @@ pika==1.2.1
     # via testcontainers
 pluggy==1.0.0
     # via pytest
-protobuf==3.19.4
+protobuf==3.19.5
     # via
     #   google-api-core
     #   googleapis-common-protos
diff --git a/requirements/3.7.txt b/requirements/3.7.txt
index 455fc9e44..db861c410 100644
--- a/requirements/3.7.txt
+++ b/requirements/3.7.txt
@@ -155,7 +155,7 @@ pika==1.2.1
     # via testcontainers
 pluggy==1.0.0
     # via pytest
-protobuf==3.20.1
+protobuf==3.19.5
     # via
     #   google-api-core
     #   googleapis-common-protos
diff --git a/requirements/3.8.txt b/requirements/3.8.txt
index 7189bc0b4..e4b58b184 100644
--- a/requirements/3.8.txt
+++ b/requirements/3.8.txt
@@ -147,7 +147,7 @@ pika==1.2.1
     # via testcontainers
 pluggy==1.0.0
     # via pytest
-protobuf==3.20.1
+protobuf==3.19.5
     # via
     #   google-api-core
     #   googleapis-common-protos
diff --git a/requirements/3.9.txt b/requirements/3.9.txt
index eef7dbced..25a0c877c 100644
--- a/requirements/3.9.txt
+++ b/requirements/3.9.txt
@@ -143,7 +143,7 @@ pika==1.2.1
     # via testcontainers
 pluggy==1.0.0
     # via pytest
-protobuf==3.20.1
+protobuf==3.19.5
     # via
     #   google-api-core
     #   googleapis-common-protos