diff --git a/pkgs/by-name/ma/marytts/gradle-8.patch b/pkgs/by-name/ma/marytts/gradle-8.patch
new file mode 100644
index 000000000000..3a69670ea572
--- /dev/null
+++ b/pkgs/by-name/ma/marytts/gradle-8.patch
@@ -0,0 +1,28 @@
+From 5cda42b687a2271f5be52466c39d18e974beaa30 Mon Sep 17 00:00:00 2001
+From: Tomodachi94 <tomodachi94@protonmail.com>
+Date: Sun, 20 Apr 2025 02:22:16 +0000
+Subject: [PATCH] gradle(installDist): explicitly depend on
+ installerGuiStartScripts
+
+This allows us to use Gradle 8.
+
+Closes #1112
+---
+ applicationLogic.gradle | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/applicationLogic.gradle b/applicationLogic.gradle
+index 0d4a4c7dc..a4f6a571c 100644
+--- a/applicationLogic.gradle
++++ b/applicationLogic.gradle
+@@ -129,6 +129,10 @@ def testStartScriptsTask = tasks.register('testStartScripts') {
+     }
+ }
+ 
++tasks.named('installDist') {
++    dependsOn tasks.named('installerGuiStartScripts')
++}
++
+ tasks.named('check') {
+     dependsOn testStartScriptsTask
+ }
diff --git a/pkgs/by-name/ma/marytts/package.nix b/pkgs/by-name/ma/marytts/package.nix
index b74c55f4d458..763c62baa39f 100644
--- a/pkgs/by-name/ma/marytts/package.nix
+++ b/pkgs/by-name/ma/marytts/package.nix
@@ -2,9 +2,8 @@
   lib,
   stdenvNoCC,
   fetchFromGitHub,
-  # Gradle 8 complains about implicit task dependencies when using `installDist`.
-  # See https://github.com/marytts/marytts/issues/1112
-  gradle_7,
+  # "Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0."
+  gradle_8,
   makeWrapper,
   jdk,
   nixosTests,
@@ -20,12 +19,19 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     hash = "sha256-jGpsD6IwJ67nDLnulBn8DycXCyowssSnDCkQXBIfOH8=";
   };
 
+  patches = [
+    # Gradle 8 complains about implicit task dependencies when using `installDist`,
+    # so let's patch it.
+    # See https://github.com/marytts/marytts/issues/1112
+    ./gradle-8.patch
+  ];
+
   nativeBuildInputs = [
-    gradle_7
+    gradle_8
     makeWrapper
   ];
 
-  mitmCache = gradle_7.fetchDeps {
+  mitmCache = gradle_8.fetchDeps {
     inherit (finalAttrs) pname;
     data = ./deps.json;
   };