diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 132266c1..d4375f22 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -9,13 +9,13 @@ googleJavaFormat = "1.25.2"
 # must not use `+` because used in download URL
 # 23.1.x requires JDK 20+
 graalVm = "24.1.2"
-graalVmJdkVersion = "21.0.5"
+graalVmJdkVersion = "21.0.8"
 # slightly hacky but convenient place so we remember to update the checksum
-graalVmSha256-macos-x64 = "2d9b09e28bc1bb6ff219bf62eacc4626c7740b4f1829ede9ea4450f33e9c0826"
-graalVmSha256-macos-aarch64 = "cb68cb2c796f42f37a56fcd1385d8b86cca12e0b46c5618a5ed3ec7dd2260f6f"
-graalVmSha256-linux-x64 = "c1960d4f9d278458bde1cd15115ac2f0b3240cb427d51cfeceb79dab91a7f5c9"
-graalVmSha256-linux-aarch64 = "3ad68fbb2d13da528dfa0aea9e9345383245ec9c31094dce3905cefba9aac01e"
-graalVmSha256-windows-x64 = "d5784cbdc87f84b5cbd6c9d09c6f1d4611954f139fcfc795005c58dffd7f6b41"
+graalVmSha256-macos-x64 = "1a63681c9042f92f27da535c3b0fada62aae094da1f705ecb0ef0270b80f873b"
+graalVmSha256-macos-aarch64 = "3de4049d254dd3c04fd65a66be904d6cf490dca4ece2e2b5fcdfa91d34760f4f"
+graalVmSha256-linux-x64 = "c8035b3ce6e45f1481752c6b38153bb4a53eeb477c5345d5bec5ca44ed18a056"
+graalVmSha256-linux-aarch64 = "aa1100beb3377717a0ba1937e51878c48917615922a36c4508baf46927a9a6e4"
+graalVmSha256-windows-x64 = "0401a5c9b4a5478640b0d5563a5e0f2c97513ab689c5ee647d41293b92eed0e4"
 ideaExtPlugin = "1.1.9"
 javaPoet = "0.+"
 javaxInject = "1"