diff --git a/userspace/libs/librpc-rs/Cargo.lock b/userspace/libs/librpc-rs/Cargo.lock
index b6d7f32b..b46bb22d 100644
--- a/userspace/libs/librpc-rs/Cargo.lock
+++ b/userspace/libs/librpc-rs/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "autocfg"
@@ -54,9 +54,9 @@ dependencies = [
 
 [[package]]
 name = "protobuf"
-version = "3.5.0"
+version = "3.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df67496db1a89596beaced1579212e9b7c53c22dca1d9745de00ead76573d514"
+checksum = "d65a1d4ddae7d8b5de68153b48f6aa3bba8cb002b243dbdbc55a5afbc98f99f4"
 dependencies = [
  "once_cell",
  "protobuf-support",
@@ -65,9 +65,9 @@ dependencies = [
 
 [[package]]
 name = "protobuf-support"
-version = "3.5.0"
+version = "3.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e2d30ab1878b2e72d1e2fc23ff5517799c9929e2cf81a8516f9f4dcf2b9cf3"
+checksum = "3e36c2f31e0a47f9280fb347ef5e461ffcd2c52dd520d8e216b52f93b0b0d7d6"
 dependencies = [
  "thiserror",
 ]
diff --git a/userspace/libs/librpc-rs/Cargo.toml b/userspace/libs/librpc-rs/Cargo.toml
index 6401006f..42e3047f 100644
--- a/userspace/libs/librpc-rs/Cargo.toml
+++ b/userspace/libs/librpc-rs/Cargo.toml
@@ -11,7 +11,7 @@ version = "0.1.1"
 [dependencies]
 num-derive = "0.4"
 num-traits = "0.2"
-protobuf = {version = "3.4.0", optional = true}
+protobuf = {version = "3.7.2", optional = true}
 
 [features]
 debug = []