diff --git a/gwasm/compression/Cargo.lock b/gwasm/compression/Cargo.lock
index d67620a..ac3a773 100644
--- a/gwasm/compression/Cargo.lock
+++ b/gwasm/compression/Cargo.lock
@@ -4,54 +4,36 @@
 name = "build_const"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39092a32794787acd8525ee150305ff051b0aa6cc2abaf193924f5ab05425f39"
 
 [[package]]
 name = "byteorder"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "cfg-if"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 
 [[package]]
 name = "compression"
 version = "0.1.0"
 dependencies = [
- "lzma-rs 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lzma-rs",
 ]
 
 [[package]]
 name = "crc"
 version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d663548de7f5cca343f1e0a48d14dcfb0e9eb4e079ec58883b7251539fa10aeb"
 dependencies = [
- "build_const 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "log"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "build_const",
 ]
 
 [[package]]
 name = "lzma-rs"
-version = "0.1.1"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aba8ecb0450dfabce4ad72085eed0a75dffe8f21f7ada05638564ea9db2d7fb1"
 dependencies = [
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder",
+ "crc",
 ]
-
-[metadata]
-"checksum build_const 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "39092a32794787acd8525ee150305ff051b0aa6cc2abaf193924f5ab05425f39"
-"checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
-"checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
-"checksum crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d663548de7f5cca343f1e0a48d14dcfb0e9eb4e079ec58883b7251539fa10aeb"
-"checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
-"checksum lzma-rs 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9550ba35a4d6bb6be7f273bce93af3a3141c517bf7d7298763a7149e1bdb9af5"
diff --git a/gwasm/compression/Cargo.toml b/gwasm/compression/Cargo.toml
index c1948b3..0d9dbe7 100644
--- a/gwasm/compression/Cargo.toml
+++ b/gwasm/compression/Cargo.toml
@@ -5,4 +5,4 @@ authors = ["Craig Mayhew"]
 edition = "2018"
 
 [dependencies]
-lzma-rs  = "0.1"
\ No newline at end of file
+lzma-rs  = "0.2"
\ No newline at end of file