diff --git a/requirements.txt b/requirements.txt
index e63939b..b686847 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-pycurl>=7.43.0
-python-dateutil==2.8.1
-certifi==2019.11.28
+pycurl
+python-dateutil
+certifi