diff --git a/README.md b/README.md
index a9f8377..32713e4 100644
--- a/README.md
+++ b/README.md
@@ -20,8 +20,6 @@ For an implemented interface please have a look at `/test` folder, where several
 example implementations are tested against the conformance test suite:
   * [`CyclicGroup`](https://github.com/kalmarek/GroupsCore.jl/blob/main/test/cyclic.jl)
   * [`InfCyclicGroup`](https://github.com/kalmarek/GroupsCore.jl/blob/main/test/infinite_cyclic.jl)
-  * [`DirectProduct`](https://github.com/kalmarek/GroupsCore.jl/blob/main/src/constructions/direct_product.jl)
-  * [`WreathProduct`](https://github.com/kalmarek/GroupsCore.jl/blob/main/src/constructions/wreath_product.jl)
 
 To test the conformance of a group implementation one can run