diff --git a/pkgs/tools/games/minecraft/optifine/versions.json b/pkgs/tools/games/minecraft/optifine/versions.json
index f5b02d748ba42..2550977a7ece2 100644
--- a/pkgs/tools/games/minecraft/optifine/versions.json
+++ b/pkgs/tools/games/minecraft/optifine/versions.json
@@ -1,4 +1,8 @@
 {
+    "optifine_1_21_3": {
+        "version": "1.21.3_HD_U_J2",
+        "sha256": "0yv6f6vaxsqxkc4hh4kvfdr7gxi197gzv82w7pwi927xyvgsl5ir"
+    },
     "optifine_1_21_1": {
         "version": "1.21.1_HD_U_J1",
         "sha256": "10lhnxang1zpvc30brg8ansm5b2snmf8x14g5pmbs280vca2svfv"
@@ -156,7 +160,7 @@
         "sha256": "18lzyh639mi7r2hzwnmxv0a6v1ay7dk9bzasvwff82dxq0y9zi7m"
     },
     "optifine-latest": {
-        "version": "1.21.1_HD_U_J1",
-        "sha256": "10lhnxang1zpvc30brg8ansm5b2snmf8x14g5pmbs280vca2svfv"
+        "version": "1.21.3_HD_U_J2",
+        "sha256": "0yv6f6vaxsqxkc4hh4kvfdr7gxi197gzv82w7pwi927xyvgsl5ir"
     }
 }