diff --git a/games-action/prismlauncher/files/prismlauncher-10.0.3-openjdk21.patch b/games-action/prismlauncher/files/prismlauncher-10.0.3-openjdk21.patch
new file mode 100644
index 0000000000000..58151c1ce0b38
--- /dev/null
+++ b/games-action/prismlauncher/files/prismlauncher-10.0.3-openjdk21.patch
@@ -0,0 +1,31 @@
+https://bugs.gentoo.org/917072
+--- a/libraries/launcher/CMakeLists.txt
++++ b/libraries/launcher/CMakeLists.txt
+@@ -1,10 +1,10 @@
+ cmake_minimum_required(VERSION 3.9.4)
+ project(launcher Java)
+-find_package(Java 1.7 REQUIRED COMPONENTS Development)
++find_package(Java 1.8 REQUIRED COMPONENTS Development)
+
+ include(UseJava)
+ set(CMAKE_JAVA_JAR_ENTRY_POINT org.prismlauncher.EntryPoint)
+-set(CMAKE_JAVA_COMPILE_FLAGS -target 7 -source 7)
++set(CMAKE_JAVA_COMPILE_FLAGS -target 8 -source 8)
+
+ set(SRC
+     org/prismlauncher/EntryPoint.java
+--- a/libraries/javacheck/CMakeLists.txt
++++ b/libraries/javacheck/CMakeLists.txt
+@@ -1,10 +1,10 @@
+ cmake_minimum_required(VERSION 3.9.4)
+ project(launcher Java)
+-find_package(Java 1.7 REQUIRED COMPONENTS Development)
++find_package(Java 1.8 REQUIRED COMPONENTS Development)
+
+ include(UseJava)
+ set(CMAKE_JAVA_JAR_ENTRY_POINT JavaCheck)
+-set(CMAKE_JAVA_COMPILE_FLAGS -target 7 -source 7 -Xlint:deprecation -Xlint:unchecked)
++set(CMAKE_JAVA_COMPILE_FLAGS -target 8 -source 8 -Xlint:deprecation -Xlint:unchecked)
+
+ set(SRC
+     JavaCheck.java
diff --git a/games-action/prismlauncher/prismlauncher-9999.ebuild b/games-action/prismlauncher/prismlauncher-9999.ebuild
index 4069a0a638984..c0f0e0663d28a 100644
--- a/games-action/prismlauncher/prismlauncher-9999.ebuild
+++ b/games-action/prismlauncher/prismlauncher-9999.ebuild
@@ -82,7 +82,7 @@ src_prepare() {
 		elog
 		elog "If you experience any problems, install an older java compiler"
 		elog "and select it with \"eselect java\", then recompile ${PN}."
-		eapply "${FILESDIR}/${PN}-9.1-openjdk21.patch"
+		eapply "${FILESDIR}/${PN}-10.0.3-openjdk21.patch"
 	fi
 }