diff --git a/native/xler_native/Cargo.lock b/native/xler_native/Cargo.lock
index a9efbad..1d0402e 100644
--- a/native/xler_native/Cargo.lock
+++ b/native/xler_native/Cargo.lock
@@ -6,28 +6,6 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d2e7343e7fc9de883d1b0341e0b13970f764c14101234857d2ddafa1cb1cac2"
 
-[[package]]
-name = "backtrace"
-version = "0.3.40"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "924c76597f0d9ca25d762c25a4d369d51267536465dc5064bdf0eb073ed477ea"
-dependencies = [
- "backtrace-sys",
- "cfg-if",
- "libc",
- "rustc-demangle",
-]
-
-[[package]]
-name = "backtrace-sys"
-version = "0.1.32"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d6575f128516de27e3ce99689419835fce9643a9b215a14d2b5b685be018491"
-dependencies = [
- "cc",
- "libc",
-]
-
 [[package]]
 name = "byteorder"
 version = "1.3.4"
@@ -49,12 +27,6 @@ dependencies = [
  "zip",
 ]
 
-[[package]]
-name = "cc"
-version = "1.0.47"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa87058dce70a3ff5621797f1506cb837edd02ac4c0ae642b4542dce802908b8"
-
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -88,15 +60,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "failure"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8273f13c977665c5db7eb2b99ae520952fe5ac831ae4cd09d80c4c7042b5ed9"
-dependencies = [
- "backtrace",
-]
-
 [[package]]
 name = "flate2"
 version = "1.0.13"
@@ -154,22 +117,13 @@ dependencies = [
  "adler32",
 ]
 
-[[package]]
-name = "proc-macro2"
-version = "0.4.30"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
-dependencies = [
- "unicode-xid 0.1.0",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51ef7cd2518ead700af67bf9d1a658d90b6037d77110fd9c0445429d0ba1c6c9"
 dependencies = [
- "unicode-xid 0.2.1",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -182,52 +136,36 @@ dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "quote"
-version = "0.6.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
-dependencies = [
- "proc-macro2 0.4.30",
-]
-
 [[package]]
 name = "quote"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
 dependencies = [
- "proc-macro2 1.0.23",
+ "proc-macro2",
 ]
 
-[[package]]
-name = "rustc-demangle"
-version = "0.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
-
 [[package]]
 name = "rustler"
-version = "0.21.1"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "533dc3379a0f166749ce262a941e9b52ce19c3208729fc6b6cce76aea76d939b"
+checksum = "b787d3b2a80007f41cd4c0c310cdeb3936192768159585f65ecc7e96faf97fc3"
 dependencies = [
  "lazy_static",
  "rustler_codegen",
  "rustler_sys",
- "which",
 ]
 
 [[package]]
 name = "rustler_codegen"
-version = "0.21.1"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a21563a1c4b02773f5c6dce723630c9998694258ff4d67bd6025ba057a29b51c"
+checksum = "b5a1f867002b6f0130f47abf215cac4405646db6f5d7b009b21c890980490aa4"
 dependencies = [
  "heck",
- "proc-macro2 0.4.30",
- "quote 0.6.13",
- "syn 0.15.44",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -245,26 +183,15 @@ version = "1.0.116"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96fe57af81d28386a513cbc6858332abc6117cfdb5999647c6444b8f43a370a5"
 
-[[package]]
-name = "syn"
-version = "0.15.44"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
-dependencies = [
- "proc-macro2 0.4.30",
- "quote 0.6.13",
- "unicode-xid 0.1.0",
-]
-
 [[package]]
 name = "syn"
 version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c51d92969d209b54a98397e1b91c8ae82d8c87a7bb87df0b29aa2ad81454228"
 dependencies = [
- "proc-macro2 1.0.23",
- "quote 1.0.7",
- "unicode-xid 0.2.1",
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -282,9 +209,9 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd80fc12f73063ac132ac92aceea36734f04a1d93c1240c6944e23a3b8841793"
 dependencies = [
- "proc-macro2 1.0.23",
- "quote 1.0.7",
- "syn 1.0.42",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -293,12 +220,6 @@ version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
 
-[[package]]
-name = "unicode-xid"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-
 [[package]]
 name = "unicode-xid"
 version = "0.2.1"
@@ -320,16 +241,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 
-[[package]]
-name = "which"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b57acb10231b9493c8472b20cb57317d0679a49e0bdbee44b3b803a6473af164"
-dependencies = [
- "failure",
- "libc",
-]
-
 [[package]]
 name = "xler_native"
 version = "0.2.0"
diff --git a/native/xler_native/Cargo.toml b/native/xler_native/Cargo.toml
index b72235b..ae57b95 100644
--- a/native/xler_native/Cargo.toml
+++ b/native/xler_native/Cargo.toml
@@ -9,6 +9,6 @@ path = "src/lib.rs"
 crate-type = ["dylib"]
 
 [dependencies]
-rustler = "0.21.1"
+rustler = "0.22.0"
 lazy_static = "1.4"
 calamine = "0.18.0"
\ No newline at end of file