diff --git a/Cargo.lock b/Cargo.lock
index b2ffc08cf..b80a6f361 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3514,9 +3514,9 @@ dependencies = [
 
 [[package]]
 name = "prost"
-version = "0.10.3"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc03e116981ff7d8da8e5c220e374587b98d294af7ba7dd7fda761158f00086f"
+checksum = "71adf41db68aa0daaefc69bb30bcd68ded9b9abaad5d1fbb6304c4fb390e083e"
 dependencies = [
  "bytes",
  "prost-derive",
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index 012938c04..afa5b6318 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -99,7 +99,7 @@ tokio = { version = "1.18.2", features = ["full", "test-util"] }
 tokio-stream = "0.1.8"
 
 # test feature lightwalletd-grpc-tests
-prost = "0.10.3"
+prost = "0.10.4"
 tonic = "0.7.2"
 
 proptest = "0.10.1"