diff --git a/ffi/Cargo.lock b/ffi/Cargo.lock
index eeb5201..38a65f7 100644
--- a/ffi/Cargo.lock
+++ b/ffi/Cargo.lock
@@ -1203,6 +1203,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "rmp-serde"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c5b13be192e0220b8afb7222aa5813cb62cc269ebb5cac346ca6487681d2913e"
+dependencies = [
+ "byteorder",
+ "rmp",
+ "serde",
+]
+
 [[package]]
 name = "rmpv"
 version = "0.4.7"
@@ -1267,7 +1278,7 @@ dependencies = [
  "mopa",
  "native-tls",
  "rand_core 0.6.4",
- "rmp-serde",
+ "rmp-serde 0.13.7",
  "rmpv",
  "serde",
  "tokio-core",
@@ -1297,7 +1308,7 @@ dependencies = [
  "libc",
  "log 0.4.17",
  "log4rs",
- "rmp-serde",
+ "rmp-serde 1.1.1",
  "saltyrtc-client",
  "saltyrtc-task-relayed-data",
  "tokio-core",
diff --git a/ffi/Cargo.toml b/ffi/Cargo.toml
index 935e7ff..46080d1 100644
--- a/ffi/Cargo.toml
+++ b/ffi/Cargo.toml
@@ -13,7 +13,7 @@ lazy_static = "1"
 libc = "0.2"
 log = "0.4"
 log4rs = { version = "1", features = ["console_appender"], default-features = false }
-rmp-serde = "0.13"
+rmp-serde = "1.1"
 saltyrtc-client = "0.9"
 saltyrtc-task-relayed-data = { path = ".." }
 tokio-core = "0.1"