diff --git a/subgraphs/reviews/pdm.lock b/subgraphs/reviews/pdm.lock
index 9f6442693..cac0d6580 100644
--- a/subgraphs/reviews/pdm.lock
+++ b/subgraphs/reviews/pdm.lock
@@ -6,7 +6,7 @@ groups = ["default", "dev"]
 cross_platform = true
 static_urls = false
 lock_version = "4.3"
-content_hash = "sha256:259197458e53df5bd009a7d25e6384e9a9e22cbbd778c4083b614d7497e91184"
+content_hash = "sha256:58496e4ebb62de9da3f0db7dde5a5f181a02d1d14c9a6370eb7cc00d47f4a38f"
 
 [[package]]
 name = "anyio"
@@ -532,32 +532,23 @@ files = [
 
 [[package]]
 name = "protobuf"
-version = "3.20.3"
+version = "4.23.4"
 requires_python = ">=3.7"
-summary = "Protocol Buffers"
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-    {file = "protobuf-3.20.3.tar.gz", hash = "sha256:2e3427429c9cffebf259491be0af70189607f365c2f41c7c3764af6f337105f2"},
+summary = ""
+files = [
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+    {file = "protobuf-4.23.4-cp39-cp39-win32.whl", hash = "sha256:6dd9b9940e3f17077e820b75851126615ee38643c2c5332aa7a359988820c720"},
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+    {file = "protobuf-4.23.4-py3-none-any.whl", hash = "sha256:e9d0be5bf34b275b9f87ba7407796556abeeba635455d036c7351f7c183ef8ff"},
+    {file = "protobuf-4.23.4.tar.gz", hash = "sha256:ccd9430c0719dce806b93f89c91de7977304729e55377f872a92465d548329a9"},
 ]
 
 [[package]]
diff --git a/subgraphs/reviews/pyproject.toml b/subgraphs/reviews/pyproject.toml
index 7779ed7ae..0caa92976 100644
--- a/subgraphs/reviews/pyproject.toml
+++ b/subgraphs/reviews/pyproject.toml
@@ -11,7 +11,7 @@ dependencies = [
     "opentelemetry-exporter-zipkin>=1.11.1",
     "opentelemetry-instrumentation-starlette>=0.30b1",
     "opentelemetry-exporter-otlp>=1.11.1",
-    "protobuf==3.20.3",
+    "protobuf==4.23.4",
     "grpcio==1.56.2",
 ]
 description = ""