diff --git a/detectron.py b/detectron.py
index 6b39d5c..f15d566 100644
--- a/detectron.py
+++ b/detectron.py
@@ -1,9 +1,6 @@
 from typing import List, Tuple
 import os
-try:
-    import detectron2
-except ModuleNotFoundError:
-    os.system("pip install 'git+https://github.com/facebookresearch/detectron2.git'")
+import detectron2
 from detectron2 import model_zoo
 from detectron2.config import get_cfg
 from detectron2.engine.defaults import DefaultPredictor
diff --git a/requirements.txt b/requirements.txt
index a8a8ca2..c14bc13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 torch >= 1.8
 torchvision >= 0.9.0
-# detectron2
-# https://github.com/facebookresearch/detectron2/archive/refs/tags/v0.6.tar.gz
+detectron2@https://github.com/facebookresearch/detectron2/archive/refs/tags/v0.6.tar.gz
+# detectron2@git+https://github.com/facebookresearch/detectron2.git@v0.6#egg=detectron2