diff --git a/Cargo.lock b/Cargo.lock
index 430ade292..41895b3c7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1646,7 +1646,7 @@ version = "0.35.0"
 dependencies = [
  "anyhow",
  "heck",
- "protobuf 3.3.0",
+ "protobuf 3.4.0",
  "protobuf-parse",
 ]
 
@@ -3571,9 +3571,9 @@ checksum = "020f86b07722c5c4291f7c723eac4676b3892d47d9a7708dc2779696407f039b"
 
 [[package]]
 name = "protobuf"
-version = "3.3.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b65f4a8ec18723a734e5dc09c173e0abf9690432da5340285d536edcb4dac190"
+checksum = "58678a64de2fced2bdec6bca052a6716a0efe692d6e3f53d1bda6a1def64cfc0"
 dependencies = [
  "once_cell",
  "protobuf-support",
@@ -3582,14 +3582,14 @@ dependencies = [
 
 [[package]]
 name = "protobuf-parse"
-version = "3.3.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77d6fbd6697c9e531873e81cec565a85e226b99a0f10e1acc079be057fe2fcba"
+checksum = "96cb37955261126624a25b5e6bda40ae34cf3989d52a783087ca6091b29b5642"
 dependencies = [
  "anyhow",
  "indexmap 1.9.3",
  "log",
- "protobuf 3.3.0",
+ "protobuf 3.4.0",
  "protobuf-support",
  "tempfile",
  "thiserror",
@@ -3598,9 +3598,9 @@ dependencies = [
 
 [[package]]
 name = "protobuf-support"
-version = "3.3.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6872f4d4f4b98303239a2b5838f5bbbb77b01ffc892d627957f37a22d7cfe69c"
+checksum = "e1ed294a835b0f30810e13616b1cd34943c6d1e84a8f3b0dcfe466d256c3e7e7"
 dependencies = [
  "thiserror",
 ]
diff --git a/chain/common/Cargo.toml b/chain/common/Cargo.toml
index cd2e27759..18f95dd4f 100644
--- a/chain/common/Cargo.toml
+++ b/chain/common/Cargo.toml
@@ -7,6 +7,6 @@ edition.workspace = true
 
 [dependencies]
 protobuf = "3.0.2"
-protobuf-parse = "3.3.0"
+protobuf-parse = "3.4.0"
 anyhow = "1"
 heck = "0.4"