diff --git a/requirements.txt b/requirements.txt
index 8d54daa..fff589e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,20 +1,20 @@
-certifi==2020.12.5
-cffi==1.14.3
-chardet==3.0.4
-construct==2.10.70
-crypto==1.4.1
-cryptography==3.2.1
-et-xmlfile==1.0.1
-idna==2.10
-jdcal==1.4.1
-lxml==6.0.2
-Naked==0.1.31
-protobuf==3.15.1
-pycparser==2.22
-pycryptodome==3.9.9
-pytlv==0.71
-PyYAML==5.3.1
-requests==2.25.0
-shellescape==3.8.1
-six==1.15.0
-urllib3==1.26.2
+certifi>=2020.12.5
+cffi>=1.14.3
+chardet>=3.0.4
+construct>=2.10.70
+crypto>=1.4.1
+cryptography>=3.2.1
+et-xmlfile>=1.0.1
+idna>=2.10
+jdcal>=1.4.1
+lxml>=6.0.2
+Naked>=0.1.31
+protobuf>=3.15.1
+pycparser>=2.22
+pycryptodome>=3.9.9
+pytlv>=0.71
+PyYAML>=5.3.1
+requests>=2.25.0
+shellescape>=3.8.1
+six>=1.15.0
+urllib3>=1.26.2