diff --git a/setup.cfg b/setup.cfg
index 4ac5ae1..cc24940 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,18 +20,26 @@ package_dir=
 packages = find:
 include_package_data = True
 setup_requires =
-  setuptools>=44.11.0
-  setuptools-scm~=7.1.0
-  wheel>=0.37.1
+  setuptools
+  setuptools-scm
+  wheel
 install_requires =
   fbtftp>=0.5
-  python-daemon>=3.0.1
+  python-daemon>=3.0.1; python_version>"3.6"
+  python-daemon==2.3.2; python_version=="3.6"
   pyyaml>=6.0
+  click>=8.0.4; python_version>"3.6"
+  click==8.0.4; python_version=="3.6"
+  importlib-resources==5.4.0; python_version=="3.6"
+  schema>=0.6.7; python_version>"3.6"
+  schema==0.6.7; python_version=="3.6"
 
 [options.extras_require]
 tests_require =
   pytest>=7.0.1
   pytest-mock>=3.6.1
+  pytest-cov>=4.1.0; python_version>"3.6"
+  pytest-cov==3.0.0; python_version=="3.6"
 lint_requires =
   pre-commit>=2.0.1
   black>=22.1.0