diff --git a/src/mewbot/tools/install_deps.py b/src/mewbot/tools/install_deps.py
index 9f0b3c38..7c528e19 100644
--- a/src/mewbot/tools/install_deps.py
+++ b/src/mewbot/tools/install_deps.py
@@ -25,7 +25,7 @@ def main() -> bool:
     for file in dot.glob("requirements-*.txt"):
         requirements.extend(("-r", str(file)))
 
-    for file in gather_paths("requirements.txt"):
+    for file in gather_paths("requirements.txt", "requirements-dev.txt"):
         requirements.extend(("-r", str(file)))
 
     subprocess.check_call([sys.executable, "-m", "pip", "install", *requirements])