diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f67c2d6..4548f8a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -17,11 +17,11 @@ repos:
       - id: pretty-format-toml
         args: [--autofix]
   - repo: https://github.com/fsfe/reuse-tool
-    rev: v3.0.1
+    rev: v3.1.0a1
     hooks:
       - id: reuse
   - repo: https://github.com/codespell-project/codespell
-    rev: v2.2.6
+    rev: v2.3.0
     hooks:
       - id: codespell
   - repo: https://github.com/adamchainz/blacken-docs
@@ -30,21 +30,21 @@ repos:
       - id: blacken-docs
         args: [-l 100]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.9.0
+    rev: v1.10.0
     hooks:
       - id: mypy
         files: simweights
         additional_dependencies: [numpy]
         exclude: ^contrib/
   - repo: https://github.com/pycqa/pylint
-    rev: v3.1.0
+    rev: v3.2.2
     hooks:
       - id: pylint
         files: simweights
         exclude: ^contrib/
         additional_dependencies: [numpy, pandas]
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.3.5
+    rev: v0.4.6
     hooks:
       - id: ruff
         args: [--fix, --show-fixes]
@@ -69,7 +69,7 @@ repos:
       - id: forbid-crlf
       - id: forbid-tabs
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0
+    rev: v4.6.0
     hooks:
       - id: check-added-large-files
       - id: check-builtin-literals
diff --git a/examples/effective_area.py b/examples/effective_area.py
index 54cd608..2cefeb3 100755
--- a/examples/effective_area.py
+++ b/examples/effective_area.py
@@ -17,10 +17,10 @@
 w = simweights.NuGenWeighter(f, nfiles=10)
 # create the energy and zenith bins
 energy_bins = np.geomspace(1e2, 1e8, 25)
-zenith_bins = [-1, -0.5, 0, 0.5, 1]
+cos_zenith_bins = [-1, -0.5, 0, 0.5, 1]
 
 # calculate the effective area in energy and zenith bins with all of the events in the sample
-effective_area = w.effective_area(energy_bins, zenith_bins)
+effective_area = w.effective_area(energy_bins, cos_zenith_bins)
 
 # make some labels for the different zenith bins
 zenith_labels = [
diff --git a/pyproject.toml b/pyproject.toml
index ab70d5c..fa6d9d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,6 +34,7 @@ requires-python = "~=3.7"
 [project.optional-dependencies]
 dev = ["pytest", "pre-commit", "reuse", "black", "ruff", "pylint", "mypy"]
 docs = ["sphinx", "sphinx-rtd-theme", "pandas"]
+examples = ['matplotlib']
 test = [
   "h5py",
   "tables < 3.8; python_version < '3.9'",
@@ -53,7 +54,7 @@ Documentation = "https://docs.icecube.aq/simweights/main"
 Source = "https://github.com/icecube/simweights"
 
 [tool.codespell]
-ignore-words-list = 'livetime'
+ignore-words-list = 'livetime,assertIn'
 skip = '_build'
 
 [tool.coverage.report]
@@ -98,8 +99,8 @@ fixable = ["I"]
 ignore = [
   "ANN401",  # any-type
   "S101",  # assert-used
-  "COM812",  # confilcts with ruff formatter
-  "ISC001",  # confilcts with ruff formatter
+  "COM812",  # conflicts with ruff formatter
+  "ISC001",  # conflicts with ruff formatter
   "PLR0913"  # Too many arguments in function definition
 ]
 select = ["ALL"]