diff --git a/pkgs/by-name/si/simp_le/package.nix b/pkgs/by-name/si/simp_le/package.nix
index 9b6cd8fe5c9c..662e5fa25b78 100644
--- a/pkgs/by-name/si/simp_le/package.nix
+++ b/pkgs/by-name/si/simp_le/package.nix
@@ -22,6 +22,10 @@ python3Packages.buildPythonApplication rec {
       --replace "/bin/sh" "${bash}/bin/sh"
   '';
 
+  pythonRelaxDeps = [
+    "acme"
+  ];
+
   # both setuptools-scm and mock are runtime dependencies
   dependencies = with python3Packages; [
     acme