diff --git a/CHANGELOG.md b/CHANGELOG.md
index c838756..1f2094a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 <!-- next-header -->
+
 ## [Unreleased] - ReleaseDate
+### Changed
+- [PR#21](https://github.com/EmbarkStudios/rymder/pull/21) updated `prost` and `tonic` to 0.11 and 0.9 respectively.
+
 ## [0.6.1] - 2023-10-04
 ### Changed
 - [PR#20](https://github.com/EmbarkStudios/rymder/pull/20) updated `prost` and `tonic`
diff --git a/Cargo.toml b/Cargo.toml
index 851f52e..559de75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ player-tracking = []
 async-stream = "0.3"
 futures-util = "0.3"
 http = "0.2"
-prost = "0.12"
+prost = "0.11"
 time = { version = "0.3", default-features = false }
 
 [dependencies.tokio]
@@ -34,7 +34,7 @@ default-features = false
 features = ["sync", "time"]
 
 [dependencies.tonic]
-version = "0.10"
+version = "0.9"
 default-features = false
 features = ["codegen", "transport", "prost"]
 
diff --git a/deny.toml b/deny.toml
index 60d4a23..23fe78b 100644
--- a/deny.toml
+++ b/deny.toml
@@ -16,6 +16,8 @@ deny = [{ name = "openssl-sys" }]
 skip = [
     # hyper uses an old version
     { name = "socket2", version = "=0.4.9" },
+    # prost uses an old version
+    { name = "syn", version = "=1.0.109" },
 ]
 
 [sources]