diff --git a/CHANGES b/CHANGES
index 43c9fb2..0944104 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,7 @@
 0.9.3 UNRELEASED
  - Fixup csl dataset processing for single item lists
  - file: dataset support
+ - Bump minimum authres version to 1.1.0 due to known issues with 1.0.2
 
 0.9.2 2018-02-19
  - Improved package requirements definition
diff --git a/setup.py b/setup.py
index 025fede..d453a33 100644
--- a/setup.py
+++ b/setup.py
@@ -55,6 +55,6 @@ setup(
         (os.path.join('/lib', 'systemd', 'system'),
         ['system/dkimpy-milter.service']),(os.path.join('/etc', 'init.d'),
         ['system/dkimpy-milter'])],
-    install_requires = ['dkimpy>=0.7', 'pymilter', 'authres>=1.0.2', 'PyNaCl'],
+    install_requires = ['dkimpy>=0.7', 'pymilter', 'authres>=1.1.0', 'PyNaCl'],
     zip_safe = False,
 )