diff --git a/requirements.txt b/requirements.txt
index b410b94..a683f4f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-pysnmp>=4.4.1
+pysnmp>=4.4.3
diff --git a/setup.py b/setup.py
index 7406445..d875031 100644
--- a/setup.py
+++ b/setup.py
@@ -60,7 +60,7 @@ def howto_install_setuptools():
     from setuptools import setup
 
     params = {
-        'install_requires': ['pysnmp>=4.4.1'],
+        'install_requires': ['pysnmp>=4.4.3'],
         'zip_safe': True
     }
 
@@ -74,7 +74,7 @@ def howto_install_setuptools():
     params = {}
 
     if sys.version_info[:2] > (2, 4):
-        params['requires'] = ['pysnmp(>=4.4.1)']
+        params['requires'] = ['pysnmp(>=4.4.3)']
 
 doclines = [x.strip() for x in (__doc__ or '').split('\n') if x]