diff --git a/.gitmodules b/.gitmodules
index cd15846..f521592 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,8 +1,8 @@
 [submodule "duckdb"]
 	path = duckdb
-	url = https://github.com/duckdb/duckdb
-	branch = main
+    url = https://github.com/grammaright/duckdb.git 
+	branch = tilestore
 [submodule "extension-ci-tools"]
 	path = extension-ci-tools
 	url = git@github.com:duckdb/extension-ci-tools.git
-	branch = main
\ No newline at end of file
+	branch = main
diff --git a/duckdb b/duckdb
index 20b1486..6058b4f 160000
--- a/duckdb
+++ b/duckdb
@@ -1 +1 @@
-Subproject commit 20b1486d1192f9fbd2328d1122b5afe5f1747fce
+Subproject commit 6058b4fe348f38f0dff582c904042fa688b55bea