diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8cbc67fb..2401bd3b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -12,7 +12,7 @@ repos:
       - id: name-tests-test
         args: [--pytest-test-first]
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.0.280 # must match pyproject.toml
+    rev: v0.0.283 # must match pyproject.toml
     hooks:
       - id: ruff
   - repo: https://github.com/psf/black-pre-commit-mirror
diff --git a/pyproject.toml b/pyproject.toml
index 0d0d8887..9ae56ccb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,11 +52,12 @@ rich = ["rich", "rich-argparse>=1"]
 # so the CLI docs generated from --help are consistent
 docs = [
     "typeshed-stats[rich]",
-    "MarkDown==3.3.7",
-    "mkdocs==1.4.3",
-    "mkdocs-macros-plugin==1.0.2",
-    "mkdocs-material==9.1.18",
-    "mkdocstrings[python]==0.22.0",
+    "MarkDown==3.4.4",
+    "mkdocs==1.5.2",
+    "mkdocs-macros-plugin==1.0.4",
+    "mkdocs-material==9.1.21",
+    "mkdocstrings==0.22.0",
+    "mkdocstrings-python==1.3.0",
 ]
 pytest = [
     "typeshed-stats[rich]",
@@ -75,7 +76,7 @@ typecheck = [
     "typeshed-stats[rich,docs,pytest]",
     "mypy==1.4.1",
     "types-beautifulsoup4==4.12.0.5",
-    "types-Markdown==3.4.2.9",
+    "types-Markdown==3.4.2.10",
 ]
 # All of these must match .pre-commit-config.yaml
 #
@@ -86,7 +87,7 @@ misc-lint = [
     "black==23.7.0",
     "blacken-docs==1.15.0",
     "pre-commit-hooks==4.4.0",
-    "ruff==0.0.280",
+    "ruff==0.0.283",
 ]
 dev = ["typeshed-stats[rich,docs,typecheck,pytest,misc-lint]"]
 
@@ -120,7 +121,12 @@ unfixable = [
     "F602",  # automatic fix might obscure issue
     "B018",  # automatic fix might obscure issue
 ]
-per-file-ignores = {"tests/*.py" = ["D"]}
+
+[tool.ruff.per-file-ignores]
+"tests/*.py" = [
+    "D",  # Don't need docstrings in test methods
+    "E721"  # Asserting exact types is desirable in tests; E721 doesn't make sense
+]
 
 [tool.ruff.pydocstyle]
 convention = "google"
diff --git a/src/typeshed_stats/serialize.py b/src/typeshed_stats/serialize.py
index 987e6f1d..77148ebe 100644
--- a/src/typeshed_stats/serialize.py
+++ b/src/typeshed_stats/serialize.py
@@ -237,7 +237,7 @@ def format_package(package_stats: PackageInfo) -> str:
         del kwargs["stubtest_settings"]
 
         kwargs = {
-            key: (f"{val:,}" if type(val) is int else val)
+            key: (f"{val:,}" if isinstance(val, int) else val)
             for key, val in kwargs.items()
         }