diff --git a/pkgs/development/tools/build-managers/gradle/default.nix b/pkgs/development/tools/build-managers/gradle/default.nix
index e22779f6d9ca9..32bd64d2f0e3e 100644
--- a/pkgs/development/tools/build-managers/gradle/default.nix
+++ b/pkgs/development/tools/build-managers/gradle/default.nix
@@ -160,9 +160,9 @@ rec {
   # https://docs.gradle.org/current/userguide/compatibility.html
 
   gradle_8 = gen {
-    version = "8.7";
-    nativeVersion = "0.22-milestone-25";
-    hash = "sha256-VEw11r2Emuil7QvOo5umd9xA9J330YNVYVgtogCblh0=";
+    version = "8.8";
+    nativeVersion = "0.22-milestone-26";
+    hash = "sha256-pLQVhgH4Y2ze6rCb12r7ZAAwu1sUSq/iYaXorwJ9xhI=";
     defaultJava = jdk21;
   };
 
diff --git a/pkgs/development/tools/build-managers/gradle/update.sh b/pkgs/development/tools/build-managers/gradle/update.sh
index 0d6b78a665255..310c368405cb8 100755
--- a/pkgs/development/tools/build-managers/gradle/update.sh
+++ b/pkgs/development/tools/build-managers/gradle/update.sh
@@ -47,6 +47,7 @@ do
 
     url="https://services.gradle.org/distributions/gradle-${v}-bin.zip"
     read -d "\n" gradle_hash gradle_path < <(nix-prefetch-url --print-path $url)
+    gradle_hash=$(nix-hash --to-sri --type sha256 "$gradle_hash")
 
     # Prefix and suffix for "native-platform" dependency.
     gradle_native_prefix="gradle-$v/lib/native-platform-"