diff --git a/build-logic/src/main/kotlin/carbon.platform-conventions.gradle.kts b/build-logic/src/main/kotlin/carbon.platform-conventions.gradle.kts
index 3f12faad4..23798f2a7 100644
--- a/build-logic/src/main/kotlin/carbon.platform-conventions.gradle.kts
+++ b/build-logic/src/main/kotlin/carbon.platform-conventions.gradle.kts
@@ -81,6 +81,7 @@ publishMods.modrinth {
   minecraftVersions.addAll(
     "1.20.6",
     "1.21",
+    "1.21.1",
   )
 }
 
diff --git a/build.gradle.kts b/build.gradle.kts
index ba0d6ebcb..5405b1df0 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -18,7 +18,7 @@ hangarPublish.publications.register("plugin") {
   apiKey = providers.environmentVariable("HANGAR_UPLOAD_KEY")
   platforms.paper {
     jar = project(":carbonchat-paper").platformJar()
-    platformVersions.add("1.20.6-1.21")
+    platformVersions.add("1.20.6-1.21.1")
     dependencies {
       url("LuckPerms", "https://luckperms.net/")
       hangar("Essentials") {
@@ -37,7 +37,7 @@ hangarPublish.publications.register("plugin") {
   }
   platforms.velocity {
     jar = project(":carbonchat-velocity").platformJar()
-    platformVersions.add("3.2")
+    platformVersions.add("3.3")
     dependencies {
       url("LuckPerms", "https://luckperms.net/")
       hangar("MiniPlaceholders") {
diff --git a/fabric/src/main/resources/fabric.mod.json b/fabric/src/main/resources/fabric.mod.json
index e8d9d09c7..fb1fded5c 100644
--- a/fabric/src/main/resources/fabric.mod.json
+++ b/fabric/src/main/resources/fabric.mod.json
@@ -24,11 +24,11 @@
         "carbonchat.mixins.json"
     ],
     "depends": {
-        "fabricloader": ">=0.15.11",
+        "fabricloader": ">=0.16.5",
         "fabric": "*",
         "cloud": "*",
         "adventure-platform-fabric": "*",
-        "minecraft": "~1.21",
+        "minecraft": ">=1.21 <=1.21.1",
         "luckperms": ">=5.0.0"
     },
     "suggests": {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index dfad5f18e..fd5e8e6d2 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -29,9 +29,9 @@ registry = "1.0.0-SNAPSHOT"
 kyoriMoonshine = "2.0.4"
 guice = "7.0.0"
 velocityApi = "3.3.0-SNAPSHOT"
-minecraft = "1.21"
+minecraft = "1.21.1"
 fabricLoader = "0.16.5"
-fabricApi = "0.102.0+1.21"
+fabricApi = "0.105.0+1.21.1"
 fabricPermissionsApi = "0.3.1"
 adventurePlatformFabric = "5.14.1"
 luckPermsApi = "5.4"
@@ -56,10 +56,10 @@ towny = "0.100.3.0"
 mcmmo = "2.1.227"
 fuuid = "1.6.9.5-U0.6.35"
 
-# synced with version used by lowest supported mc (currently 1.20.4 on paper)
+# synced with version used by lowest supported mc (currently 1.20.6 on paper)
 gson = "2.10.1"
 guava = "32.1.2-jre"
-log4j = "2.19.0"
+log4j = "2.22.1"
 netty = "4.1.97.Final"
 
 [libraries]
diff --git a/paper/build.gradle.kts b/paper/build.gradle.kts
index 980b1f333..cdc87262a 100644
--- a/paper/build.gradle.kts
+++ b/paper/build.gradle.kts
@@ -58,7 +58,7 @@ tasks {
   withType(RunServer::class).configureEach {
     version.set(libs.versions.minecraft)
     downloadPlugins {
-      url("https://download.luckperms.net/1543/bukkit/loader/LuckPerms-Bukkit-5.4.130.jar")
+      url("https://download.luckperms.net/1556/bukkit/loader/LuckPerms-Bukkit-5.4.141.jar")
       github("MiniPlaceholders", "MiniPlaceholders", libs.versions.miniplaceholders.get(), "MiniPlaceholders-Paper-${libs.versions.miniplaceholders.get()}.jar")
       github("MiniPlaceholders", "PlaceholderAPI-Expansion", "1.2.0", "PlaceholderAPI-Expansion-1.2.0.jar")
       hangar("PlaceholderAPI", libs.versions.placeholderapi.get())
diff --git a/velocity/build.gradle.kts b/velocity/build.gradle.kts
index c5f2e199b..6a90ba317 100644
--- a/velocity/build.gradle.kts
+++ b/velocity/build.gradle.kts
@@ -61,7 +61,7 @@ tasks {
     velocityVersion(libs.versions.velocityApi.get())
     pluginJars.from(prod)
     downloadPlugins {
-      url("https://download.luckperms.net/1533/velocity/LuckPerms-Velocity-5.4.120.jar")
+      url("https://download.luckperms.net/1556/velocity/LuckPerms-Velocity-5.4.141.jar")
       github("MiniPlaceholders", "MiniPlaceholders", libs.versions.miniplaceholders.get(), "MiniPlaceholders-Velocity-${libs.versions.miniplaceholders.get()}.jar")
     }
   }