diff --git a/setup.cfg b/setup.cfg
index c950722..3545b40 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -43,6 +43,9 @@ package_dir =
   = .
 packages = find:
 zip_safe = False
+install_requires =
+  calibrestekje >= 0.0.1, <= 1.0
+  flask >= 1.1.1, <= 2.0
 
 [options.packages.find]
 where = .