diff --git a/pkgs/development/coq-modules/graph-theory/default.nix b/pkgs/development/coq-modules/graph-theory/default.nix
index 1ecda185cdd8..5607d342a2eb 100644
--- a/pkgs/development/coq-modules/graph-theory/default.nix
+++ b/pkgs/development/coq-modules/graph-theory/default.nix
@@ -12,7 +12,7 @@ mkCoqDerivation {
 
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
-    { case = isEq "8.13"; out = "0.9"; }
+    { case = isGe "8.13"; out = "0.9"; }
   ] null;
 
   propagatedBuildInputs = [ mathcomp-algebra mathcomp-finmap hierarchy-builder ];