diff --git a/.replit b/.replit
index 5c54b72..0ef6faf 100644
--- a/.replit
+++ b/.replit
@@ -1,5 +1,6 @@
 [nix]
 packages = ["adoptopenjdk-openj9-bin-16"]
+channel = "stable-25_05"
 
 [agent]
 expertMode = true
diff --git a/replit.nix b/replit.nix
new file mode 100644
index 0000000..2216b7e
--- /dev/null
+++ b/replit.nix
@@ -0,0 +1,5 @@
+{pkgs}: {
+  deps = [
+    pkgs.jdk21
+  ];
+}