diff --git a/denops/skkeleton/deps/unknownutil.ts b/denops/skkeleton/deps/unknownutil.ts
index 8529b94..7168886 100644
--- a/denops/skkeleton/deps/unknownutil.ts
+++ b/denops/skkeleton/deps/unknownutil.ts
@@ -1,2 +1,2 @@
-export * as u from "https://deno.land/x/unknownutil@v3.18.1/mod.ts";
-export { is } from "https://deno.land/x/unknownutil@v3.18.1/mod.ts";
+export * as u from "jsr:@core/unknownutil@3.18.1";
+export { is } from "jsr:@core/unknownutil@3.18.1";