diff --git a/README.md b/README.md
index 115186a..dc34d97 100644
--- a/README.md
+++ b/README.md
@@ -44,12 +44,11 @@ Commands:
 
 ## Requirements
 - Python 3.8 or higher
-- Python development headers (`python3-dev` on Debian-based OSes)
 
 ## Installation
 - Install from [PyPI](https://pypi.org/project/pyimg4/):
     - ```python3 -m pip install pyimg4```
-    - If you would like to use the compression features of PyIMG4, install the required libraries:
+    - If you would like to use the compression features of PyIMG4, install the optional libraries:
       - ```python3 -m pip install pyimg4[compression]```
 - Local installation:
     - `./install.sh`
diff --git a/pyproject.toml b/pyproject.toml
index 32230e9..27cb807 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ asn1 = "^2.7.0"
 click = "^8.1.7"
 pycryptodome = "^3.18.0"
 pyliblzfse = {version = "^0.4.1", optional = true}
-pylzss = {version = "^0.3.1", optional = true}
+pylzss = {version = "^0.3.4", optional = true}
 
 [tool.poetry.extras]
 compression = ["pyliblzfse", "pylzss"]
@@ -38,6 +38,7 @@ remotezip = "^0.12.1"
 testpaths = ["tests"]
 
 [tool.ruff.lint]
+extend-select = ["I"]
 ignore = ["E722"]
 
 [tool.ruff.format]