diff --git a/install.json b/install.json
index ab132d8..f4e6d34 100644
--- a/install.json
+++ b/install.json
@@ -483,6 +483,10 @@
             "DestPath": "mods/OptiFine_1.7.10_HD_U_E7.jar",
             "DownloadUrl": "https://optifine.net/downloadx?f=OptiFine_1.7.10_HD_U_E7.jar&x=41a40eb89a62470cfc27504d2d9555e9"
         },
+        {
+            "DestPath": "mods/optimizationsandtweaks.jar",
+            "DownloadUrl": "https://github.com/quentin452/OptimizationsAndTweaks/releases/download/V1.13.9/optimizationsandtweaks-V1.13.9.jar"
+        },
         {
             "DestPath": "mods/OreDictionaryConverter-1.6.1.jar",
             "DownloadUrl": "https://mediafilez.forgecdn.net/files/2226/312/OreDictionaryConverter-1.6.1.jar"
diff --git a/updates.json b/updates.json
index 9a176fb..ef0cfc5 100644
--- a/updates.json
+++ b/updates.json
@@ -13,8 +13,14 @@
                     "DownloadUrl": "https://mediafilez.forgecdn.net/files/2366/149/MineFactoryReloaded-%5B1.7.10%5D2.8.2B1-201.jar"
                 },
                 {
+                    "Type": "Update",
                     "DestPath": "mods/wildmobsmod.jar",
                     "DownloadUrl": "https://github.com/quentin452/wildmobs/releases/download/1.5.4/WildMobs-1.7.10-1.5.4.jar"
+                },
+                {
+                    "Type": "Update",
+                    "DestPath": "mods/optimizationsandtweaks.jar",
+                    "DownloadUrl": "https://github.com/quentin452/OptimizationsAndTweaks/releases/download/V1.13.9/optimizationsandtweaks-V1.13.9.jar"
                 }
             ]
         },