diff --git a/requirements.txt b/requirements.txt
index f2c8fb0..ac171b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,7 @@
+certifi==2021.5.30
+chardet==3.0.4
+idna==2.10
 pick==1.0.0
 requests==2.24.0
 requests-toolbelt==0.9.1
-urllib3>=1.26.5
+urllib3==1.26.6