diff --git a/treescript-interpreter/Cargo.lock b/treescript-interpreter/Cargo.lock
index 9cf8cea..ee641e0 100644
--- a/treescript-interpreter/Cargo.lock
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 [[package]]
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 [[package]]
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 [[package]]
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diff --git a/treescript-interpreter/Cargo.toml b/treescript-interpreter/Cargo.toml
index bd85812..766eed5 100644
--- a/treescript-interpreter/Cargo.toml
+++ b/treescript-interpreter/Cargo.toml
@@ -16,7 +16,7 @@ app_dirs = "1.2.1"
 byteorder = "1"
 clap = "2.32.0"
 Inflector = "0.11.4"
-rmp-serde = "0.13.7"
+rmp-serde = "1.1.1"
 serde = { version = "1.0", features = ["derive"] }
 serde_bytes = "0.11"
 serde_json = "1.0"