diff --git a/requirements.txt b/requirements.txt
index cb0e05b..aa593f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,5 @@
-certifi==2018.1.18
-chardet==3.0.4
-idna==2.6
-numpy==1.12.0
+numpy==1.22.0
 pandas==0.19.2
 python-dateutil==2.6.0
 pytz==2016.10
-requests==2.18.4
 six==1.10.0
-urllib3==1.22