diff --git a/pkgs/tools/games/minecraft/optifine/versions.json b/pkgs/tools/games/minecraft/optifine/versions.json
index 07e8a2ded117..47980d6b2618 100644
--- a/pkgs/tools/games/minecraft/optifine/versions.json
+++ b/pkgs/tools/games/minecraft/optifine/versions.json
@@ -1,7 +1,7 @@
 {
     "optifine_1_20_1": {
-        "version": "1.20.1_HD_U_I5",
-        "sha256": "0mykd1lg37p59c168gi6qpykphqmbzdx3bs4sk9d8kg21aw7ijrp"
+        "version": "1.20.1_HD_U_I6",
+        "sha256": "0l66pz4hy42qxv9a2jlq1hd7jiiysnv54g9gk1dfbwpd19kwnrqb"
     },
     "optifine_1_19_4": {
         "version": "1.19.4_HD_U_I4",
@@ -148,7 +148,7 @@
         "sha256": "18lzyh639mi7r2hzwnmxv0a6v1ay7dk9bzasvwff82dxq0y9zi7m"
     },
     "optifine-latest": {
-        "version": "1.20.1_HD_U_I5",
-        "sha256": "0mykd1lg37p59c168gi6qpykphqmbzdx3bs4sk9d8kg21aw7ijrp"
+        "version": "1.20.1_HD_U_I6",
+        "sha256": "0l66pz4hy42qxv9a2jlq1hd7jiiysnv54g9gk1dfbwpd19kwnrqb"
     }
 }