diff --git a/pyproject.toml b/pyproject.toml
index d5a093f..984dc05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ classifiers = [
 python = "^3.9"
 certifi = "^2025.1.31"
 openai = "^1.4.0"
-python-dotenv = "^1.0.0"
+python-dotenv = "^1.2.1"
 slack-bolt = "^1.18.1"
 slack-sdk = "^3.26.1"
 Pillow = "^11.0.0"