diff --git a/requirements.txt b/requirements.txt
index 4de8688..d3b85ce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,7 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile pyproject.toml -o requirements.txt
+bcrypt==4.3.0
+    # via grass-touching-captcha (pyproject.toml)
 blinker==1.9.0
     # via flask
 certifi==2025.8.3