diff --git a/Cargo.toml b/Cargo.toml
index a878ffc45..7f8a6b87b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "webrtc"
-version = "0.3.3"
+version = "0.3.4"
 authors = ["Rain Liu <yliu@webrtc.rs>"]
 edition = "2018"
 description = "A pure Rust implementation of WebRTC API"
diff --git a/crates/sdp b/crates/sdp
index 01bd18582..c378a82f8 160000
--- a/crates/sdp
+++ b/crates/sdp
@@ -1 +1 @@
-Subproject commit 01bd18582fca607d1a01bdf175f15d1a03d317fe
+Subproject commit c378a82f82c6ec0dde4a74d50e0c5f5b14cab599