diff --git a/dev-java/openjdk/Manifest b/dev-java/openjdk/Manifest
index 1aac220c59566..0924b8f495433 100644
--- a/dev-java/openjdk/Manifest
+++ b/dev-java/openjdk/Manifest
@@ -4,7 +4,7 @@ DIST openjdk-17.0.20.1_p1.tar.gz 108354972 BLAKE2B 02012cc2bc6c82590d5646d03d165
 DIST openjdk-21.0.12.1_p1.tar.gz 114156415 BLAKE2B 450067022a3cd575ed070cd2dd4454bdf801c96785ac862e8468a78e6dc9dc9f12bc095cfe27e92fa49e907359538c32161620283ab98423ecd72d281034f054 SHA512 52036317d1afcf573dddaab271db5e7e73e7e01b321d1cc6d8c48d21cd36b50c1bedcd0ebfc0220b8ff1e9a92e64e40ee304ad3032799357e3c7cd5a635abafc
 DIST openjdk-25.0.4.1_p1.tar.gz 119672034 BLAKE2B 1242502393f2666265f20cc316e37c7458b9e100bdf3504a5d78b7fa9c6c10a3eadea8dce26a60ff6393d869110d7e6d2268df72387fd1c6983ae70c72aed266 SHA512 54e2e97893895b7edc881b425328fbefa51e21d90b887b531cf7bf15f7bde58ce79e50247be8619b9b9402d3d5b03a657554a6855b35bdc6567b40552f4b9c09
 DIST openjdk-27_p35.tar.gz 121507063 BLAKE2B ea8a73fb1c1b53d4aff85a0bf175c393222c54c026e623b5ae225b3dc2f4ff05c85d74301f3e82bcc039ebf7c46079fc1c3884c62edcc7f79d6357eaa9fcbed4 SHA512 168095c4e6440719259ce7c6af8264e93ba3de5ab1f1e5cc6693cb81cd357be03d54cd6962798e2bed89f40f511e9f32a33d6dc4fe0219719eb3faa74356cdc7
-DIST openjdk-28_alpha20.tar.gz 120441650 BLAKE2B a3713cd48a867400d892f1fc4c6c4c7b8101b4f255f0b975dbf410cda70f2029fe1564a8e46ff056de12182dd635703f6cb8265ec3adb19c76b632a5de73abf9 SHA512 4f1a4dba96112b81ea551e518fbcddd5287b089f256b7069c6dfe7afe11d09fde3fe29e200013eb70c984525d919d11e8d592759661ac898391d4ae98ba2cf43
+DIST openjdk-28_alpha21.tar.gz 120574263 BLAKE2B 68681ca924185d5c36e369f0c93589dfcccfe808f348918030e3ce4266efe4e8f31e1af3ca51e94d50dee46cc4c5737df405f5d3f24882c6e103cab358d93f37 SHA512 9f2bcaceb56934871a95793087e5b2118265fe554cb441f18b899769ecd546185124d1a0141161f118eeff93117b2604a4bde5c283aef50fe793fb8378cfee48
 DIST openjdk-8.504_p01.tar.gz 93982677 BLAKE2B 18b0913ee67b4c86485112411a173373daccef26da5429b03bcc62d7821bfdb647acc95c23016034cbd082dccce598eade8f25f56f76fdd149ad504e8efaaaf2 SHA512 65f7bc9603dad6ecb206fa62ba1e9c6b4b11cbbdaf4a9d69e5aa2ec57806f3447fdd0fbf7a11b34ecf5e504579721bb5c0b211e66a96972b0a092ec2b9e840c4
 DIST openjdk-bootstrap-11.0.13_p8-ppc64.tar.xz 108215404 BLAKE2B 5e6c0b905b34b437137922b73a9724da96b8832186fea945f8c73d941db822ca1cc5718f3ecb4607ed98d1f8241c9f365b54caaf978863e8b84680a94f067b5d SHA512 732e2220219d42be10589fcaf2420da87ebc8564b4afc6bd02f61f31cdca9c31b339366e34d374fb814499b92f8aa796435a18f28e10c8cb00d9a0f5953bb60e
 DIST openjdk-bootstrap-11.0.13_p8-x86.tar.xz 105420236 BLAKE2B d3137ad497937a9a04dedf38776f3ac45bf3b115d275991fd8582b72ade48390b6aa8ad89e0b4d34fa6a787a3c413dab20b32ef347dc8733544e810150c55d29 SHA512 f71a7ef8fbf19b0595dd7d4ebe52bbe1c95b8c17f34d092472c5f5ce8caf52a053f22db8587f1649f9a96ad01c0c632be343342812f5a8cc4ff843b33b8d9b0f
diff --git a/dev-java/openjdk/openjdk-28_alpha20.ebuild b/dev-java/openjdk/openjdk-28_alpha21.ebuild
similarity index 100%
rename from dev-java/openjdk/openjdk-28_alpha20.ebuild
rename to dev-java/openjdk/openjdk-28_alpha21.ebuild