diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 77c78da..7ddbc7b
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 Flask==0.10.1
 twilio==6.0.0
-python-dotenv==0.6.0
+python-dotenv==0.17.0