diff --git a/setup.cfg b/setup.cfg
index b6309a5..d25442b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -24,7 +24,6 @@ classifiers =
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
     Topic :: Scientific/Engineering
 project_urls =
     Documentation = https://neos.readthedocs.io/
@@ -35,7 +34,7 @@ project_urls =
 [options]
 packages = find:
 install_requires =
-    relaxed>=0.0.4
+    relaxed>=0.0.5
 python_requires = >=3.7
 include_package_data = True
 package_dir =