diff --git a/WebBasedCrawler/requirements.txt b/WebBasedCrawler/requirements.txt
index 0f90a49..25731ac 100644
--- a/WebBasedCrawler/requirements.txt
+++ b/WebBasedCrawler/requirements.txt
@@ -1,8 +1,8 @@
-psutil
-pymysql
-selenium
-eventlet
-requests
-bs4
-pytz
-sqlalchemy=1.1.13
+psutil==5.2.1
+pymysql==0.7.11
+selenium==3.3.1
+eventlet==0.21.0
+requests==2.10.0
+beautifulsoup4==4.5.3
+pytz==2017.2
+sqlalchemy==1.1.13