diff --git a/pkgs/development/coq-modules/graph-theory/default.nix b/pkgs/development/coq-modules/graph-theory/default.nix
index eedbe6fb5d8..9ba5f03a562 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 = range "8.13" "8.14"; out = "0.9"; }
+    { case = range "8.13" "8.15"; out = "0.9"; }
   ] null;
 
   propagatedBuildInputs = [ mathcomp-algebra mathcomp-finmap mathcomp-fingroup hierarchy-builder ];