diff --git a/.prettierrc b/.prettierrc
index ed9f7c5..039a474 100644
--- a/.prettierrc
+++ b/.prettierrc
@@ -8,7 +8,7 @@
   "singleQuote": true,
   "overrides": [
     {
-      "files": ["*.md", "docs/**/*.md"],
+      "files": ["**/*.md"],
       "options": {
         "parser": "markdown"
       }
diff --git a/scrapers/models.py b/scrapers/models.py
index 69ba52b..d2cf19a 100644
--- a/scrapers/models.py
+++ b/scrapers/models.py
@@ -1,20 +1,18 @@
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, ConfigDict, Field
 
 
 class TestCase(BaseModel):
     input: str
     expected: str
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class ProblemSummary(BaseModel):
     id: str
     name: str
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class ContestSummary(BaseModel):
@@ -22,31 +20,27 @@ class ContestSummary(BaseModel):
     name: str
     display_name: str | None = None
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class ScrapingResult(BaseModel):
     success: bool
     error: str
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class MetadataResult(ScrapingResult):
     contest_id: str = ""
     problems: list[ProblemSummary] = Field(default_factory=list)
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class ContestListResult(ScrapingResult):
     contests: list[ContestSummary] = Field(default_factory=list)
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class TestsResult(ScrapingResult):
@@ -57,8 +51,7 @@ class TestsResult(ScrapingResult):
     memory_mb: float
     interactive: bool = False
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
 
 
 class ScraperConfig(BaseModel):
@@ -67,5 +60,4 @@ class ScraperConfig(BaseModel):
     backoff_base: float = 2.0
     rate_limit_delay: float = 1.0
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid")
diff --git a/tests/conftest.py b/tests/conftest.py
index 1053031..b4ca219 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,8 +1,9 @@
+import importlib.util
 import io
 import json
 import sys
 from pathlib import Path
-from typing import Callable
+from types import ModuleType
 
 import pytest
 
@@ -19,32 +20,16 @@ def fixture_text():
     return _load
 
 
-def _compile_and_exec_module(
-    module_path: Path, offline_fetch_impls: dict[str, Callable]
-):
-    src = module_path.read_text(encoding="utf-8")
-
-    replacements: list[tuple[str, str]] = [
-        ("def _fetch(", "def _orig_fetch("),
-        ("def fetch_text(", "def _orig_fetch_text("),
-        ("async def _get_async(", "async def _orig_get_async("),
-    ]
-    for old, new in replacements:
-        src = src.replace(old, new)
-
-    stub_lines = []
-    if " _orig_fetch(" in src or "def _orig_fetch(" in src:
-        stub_lines.append("_fetch = __offline_fetch_sync")
-    if " _orig_fetch_text(" in src or "def _orig_fetch_text(" in src:
-        stub_lines.append("fetch_text = __offline_fetch_text")
-    if " _orig_get_async(" in src or "async def _orig_get_async(" in src:
-        stub_lines.append("_get_async = __offline_fetch_async")
-    src += "\n" + "\n".join(stub_lines) + "\n"
-
-    ns = {}
-    ns.update(offline_fetch_impls)
-    exec(compile(src, str(module_path), "exec"), ns)
-    return ns
+def _load_scraper_module(module_path: Path, module_name: str) -> ModuleType:
+    spec = importlib.util.spec_from_file_location(
+        f"scrapers.{module_name}", module_path
+    )
+    if spec is None or spec.loader is None:
+        raise ImportError(f"Could not load spec for {module_name} from {module_path}")
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[f"scrapers.{module_name}"] = module
+    spec.loader.exec_module(module)
+    return module
 
 
 def _capture_stdout(coro):
@@ -146,7 +131,7 @@ def run_scraper_offline(fixture_text):
 
     def _run(scraper_name: str, mode: str, *args: str):
         mod_path = ROOT / "scrapers" / f"{scraper_name}.py"
-        ns = _compile_and_exec_module(mod_path, _make_offline_fetches(scraper_name))
+        ns = _load_scraper_module(mod_path, scraper_name)
         main_async = ns.get("main_async")
         assert callable(main_async), f"main_async not found in {scraper_name}"