diff --git a/requirements.txt b/requirements.txt
index cde4e71..bd21a58 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,7 @@
-openpyxl==2.6.4
-colorconsole==0.7.2
-xlrd==1.2.0
-jsondiff==1.2.0
-requests==2.23.0
-xmltodict==0.11.0
-paramiko==2.7.1
-six==1.14.0
-sphinx==1.7.2
-MarkupSafe==1.1.0
+openpyxl~=3.0.7
+colorconsole~=0.7.2
+xlrd~=2.0.1
+requests>=2.23.0
+xmltodict~=0.12.0
+paramiko~=2.7.2
+sphinx~=4.1.2