diff --git a/fabric_update/cyclops-core.json b/fabric_update/cyclops-core.json
index 27ff32e..df7260e 100644
--- a/fabric_update/cyclops-core.json
+++ b/fabric_update/cyclops-core.json
@@ -2,7 +2,7 @@
   "homepage": "https://www.curseforge.com/minecraft/mc-mods/cyclops-core",
   "promos": {
     "1.21.1-recommended": "1.20.5",
-    "1.21.1-latest": "580"
+    "1.21.1-latest": "581"
   },
   "1.21.1": {
     "562": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5639602",
@@ -18,6 +18,7 @@
     "576": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5655402",
     "578": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5658014",
     "580": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5662896",
+    "581": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5666111",
     "1.20.5": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5662891",
     "1.20.4": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5658017",
     "1.20.3": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5655398",
diff --git a/forge_update/cyclops-core.json b/forge_update/cyclops-core.json
index 56e992f..4ebe17b 100644
--- a/forge_update/cyclops-core.json
+++ b/forge_update/cyclops-core.json
@@ -14,7 +14,7 @@
     "1.12.2-recommended": "1.6.7",
     "1.15.2-recommended": "1.9.0",
     "1.14.4-recommended": "1.6.1",
-    "1.21.1-latest": "580",
+    "1.21.1-latest": "581",
     "1.20.1-latest": "1.19.5",
     "1.19.2-latest": "1.19.5",
     "1.18.2-latest": "1.17.10",
@@ -42,6 +42,7 @@
     "576": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5655401",
     "578": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5658012",
     "580": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5662894",
+    "581": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5666109",
     "1.20.5": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5662888",
     "1.20.4": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5658015",
     "1.20.3": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5655396",
diff --git a/neoforge_update/cyclops-core.json b/neoforge_update/cyclops-core.json
index e668e4f..960d970 100644
--- a/neoforge_update/cyclops-core.json
+++ b/neoforge_update/cyclops-core.json
@@ -4,7 +4,7 @@
     "1.21.1-recommended": "1.20.5",
     "1.21-recommended": "1.19.10",
     "1.20.4-recommended": "1.19.3",
-    "1.21.1-latest": "580",
+    "1.21.1-latest": "581",
     "1.21-latest": "1.19.10",
     "1.20.4-latest": "1.19.3"
   },
@@ -22,6 +22,7 @@
     "576": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5655404",
     "578": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5658013",
     "580": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5662895",
+    "581": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5666110",
     "1.20.5": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5662890",
     "1.20.4": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5658016",
     "1.20.3": "Download and changelog available at https://www.curseforge.com/minecraft/mc-mods/cyclops-core/files/5655399",