diff --git a/buildpack.toml b/buildpack.toml
index 54e7b27..0bee6ac 100644
--- a/buildpack.toml
+++ b/buildpack.toml
@@ -138,6 +138,8 @@ api = "0.7"
     name = "GraalVM for JDK"
     purl = "pkg:generic/graalvm-jdk@17.0.8"
     sha256 = "1dffdf5c7cc5bf38558e9f093eef6a14072a6dff0be3a9906208b37b53ecc009"
+    source = "https://github.com/graalvm/graalvm-ce-builds/archive/refs/tags/jdk-17.0.8.tar.gz"
+    source-sha256 = "ec497b0da92a46948a31caeea61a2301a288ac7f5be5a585f9229da022af9207"
     stacks = ["*"]
     uri = "https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-17.0.8/graalvm-community-jdk-17.0.8_linux-x64_bin.tar.gz"
     version = "17.0.8"