diff --git a/core-bukkit/build.gradle.kts b/core-bukkit/build.gradle.kts
index 1201f94..7714eb7 100644
--- a/core-bukkit/build.gradle.kts
+++ b/core-bukkit/build.gradle.kts
@@ -1,8 +1,10 @@
+@file:Suppress("GradlePackageVersionRange", "GradlePackageUpdate")
+
 evaluationDependsOn(":core-common")
 
 dependencies {
     implementation(project(":core-common")) { isTransitive = false }
-    compileOnly("org.spigotmc:spigot-api:+")
+    compileOnly("org.spigotmc:spigot-api:1.20-R0.1-SNAPSHOT")
 
     implementation("de.tr7zw:item-nbt-api:+")
     compileOnly("net.milkbowl.vault:VaultAPI:+") { isTransitive = false }
diff --git a/core-bungeecord/build.gradle.kts b/core-bungeecord/build.gradle.kts
index 55b1831..c31b83f 100644
--- a/core-bungeecord/build.gradle.kts
+++ b/core-bungeecord/build.gradle.kts
@@ -1,3 +1,5 @@
+@file:Suppress("GradlePackageVersionRange", "GradlePackageUpdate")
+
 evaluationDependsOn(":core-common")
 
 dependencies {
diff --git a/core-common/build.gradle.kts b/core-common/build.gradle.kts
index c4d6aaa..9f0328d 100644
--- a/core-common/build.gradle.kts
+++ b/core-common/build.gradle.kts
@@ -1,4 +1,4 @@
-@file:Suppress("VulnerableLibrariesLocal")
+@file:Suppress("VulnerableLibrariesLocal", "GradlePackageUpdate", "GradlePackageVersionRange")
 
 plugins {
     id("java-library")
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 1f8540f..dbf3899 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,3 +1,10 @@
+pluginManagement {
+    repositories {
+        maven {
+            url = uri("https://maven.airgame.net/maven-public/")
+        }
+    }
+}
 rootProject.name = "hamster-core"
 include("core-common")
 include("core-bukkit")