diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index f1ab66424af..00000000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "testnets/cardano-configurations"]
-	path = testnets/cardano-configurations
-	url = git@github.com:input-output-hk/cardano-configurations.git
diff --git a/testnets/cardano-configurations b/testnets/cardano-configurations
deleted file mode 160000
index a09256f7bcd..00000000000
--- a/testnets/cardano-configurations
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit a09256f7bcd2a7e7d8427175a53a7bac10ef2ca3