diff --git i/aardwolf/utils/rlers/Cargo.lock w/aardwolf/utils/rlers/Cargo.lock
index c287687..2fbd4a1 100644
--- i/aardwolf/utils/rlers/Cargo.lock
+++ w/aardwolf/utils/rlers/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "autocfg"
@@ -14,12 +14,6 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -70,11 +64,10 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.23.5"
+version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7778bffd85cf38175ac1f545509665d0b9b92a198ca7941f131f85f7a4f9a872"
+checksum = "ab53c047fcd1a1d2a8820fe84f05d6be69e9526be40cb03b73f86b6b03e6d87d"
 dependencies = [
- "cfg-if",
  "indoc",
  "libc",
  "memoffset",
@@ -88,19 +81,18 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.23.5"
+version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94f6cbe86ef3bf18998d9df6e0f3fc1050a8c5efa409bf712e661a4366e010fb"
+checksum = "b455933107de8642b4487ed26d912c2d899dec6114884214a0b3bb3be9261ea6"
 dependencies = [
- "once_cell",
  "target-lexicon",
 ]
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.23.5"
+version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9f1b4c431c0bb1c8fb0a338709859eed0d030ff6daa34368d3b152a63dfdd8d"
+checksum = "1c85c9cbfaddf651b1221594209aed57e9e5cff63c4d11d1feead529b872a089"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -108,9 +100,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.23.5"
+version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbc2201328f63c4710f68abdf653c89d8dbc2858b88c5d88b0ff38a75288a9da"
+checksum = "0a5b10c9bf9888125d917fb4d2ca2d25c8df94c7ab5a52e13313a07e050a3b02"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -120,9 +112,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.23.5"
+version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fca6726ad0f3da9c9de093d6f116a93c1a38e417ed73bf138472cf4064f72028"
+checksum = "03b51720d314836e53327f5871d4c0cfb4fb37cc2c4a11cc71907a86342c40f9"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -161,9 +153,9 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.12.16"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
+checksum = "b1dd07eb858a2067e2f3c7155d54e929265c264e6f37efe3ee7a8d1b5a1dd0ba"
 
 [[package]]
 name = "unicode-ident"
diff --git i/aardwolf/utils/rlers/Cargo.toml w/aardwolf/utils/rlers/Cargo.toml
index d09de36..7f8ca8a 100644
--- i/aardwolf/utils/rlers/Cargo.toml
+++ w/aardwolf/utils/rlers/Cargo.toml
@@ -17,5 +17,5 @@ crate-type = ["cdylib"]
 path = "src/rle.rs"
 
 [dependencies]
-pyo3 = { version = "0.23.5", features = ["abi3"] }
+pyo3 = { version = "0.27.2", features = ["abi3"] }
 byteorder = "1.4.3"
\ No newline at end of file