diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3ca7164b..32dcc60a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -38,6 +38,16 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Validate tag release branch
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
+        shell: bash
+        run: |
+          git fetch --no-tags origin '+refs/heads/1.21.1:refs/remotes/origin/1.21.1'
+          if ! git merge-base --is-ancestor "$GITHUB_SHA" origin/1.21.1; then
+            echo "::error::Tag $GITHUB_REF_NAME points to $GITHUB_SHA, which is not contained in origin/1.21.1."
+            exit 1
+          fi
+
       - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
diff --git a/build.gradle b/build.gradle
index 2afde484..362f5c18 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,15 +9,19 @@ version = mod_version
 group = mod_group_id
 
 repositories {
-    mavenLocal()
-    maven {
-        name = 'Aliyun Public'
-        url = 'https://maven.aliyun.com/repository/public'
-    }
-    maven {
-        name = 'Aliyun Central'
-        url = 'https://maven.aliyun.com/repository/central'
+    exclusiveContent {
+        forRepository {
+            maven {
+                name = 'CurseMaven'
+                url = 'https://cursemaven.com'
+            }
+        }
+        filter {
+            includeGroup 'curse.maven'
+        }
     }
+
+    mavenLocal()
     mavenCentral()
     maven {
         name = 'NeoForge'
@@ -31,10 +35,6 @@ repositories {
         name = 'Registrate'
         url = 'https://maven.ithundxr.dev/snapshots'
     }
-    maven {
-        name = 'CurseMaven'
-        url = 'https://cursemaven.com'
-    }
     maven {
         name = 'Jared Maven'
         url = 'https://maven.blamejared.com'
diff --git a/settings.gradle b/settings.gradle
index e8c1fb04..42c43563 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,16 +1,20 @@
 pluginManagement {
     repositories {
-        mavenLocal()
-        maven {
-            name = 'Aliyun Gradle Plugin'
-            url = 'https://maven.aliyun.com/repository/gradle-plugin'
-        }
-        maven {
-            name = 'Aliyun Public'
-            url = 'https://maven.aliyun.com/repository/public'
+        exclusiveContent {
+            forRepository {
+                maven {
+                    name = 'NeoForge'
+                    url = 'https://maven.neoforged.net/releases'
+                }
+            }
+            filter {
+                includeGroup 'net.neoforged'
+                includeGroup 'net.neoforged.moddev'
+            }
         }
+
+        mavenLocal()
         gradlePluginPortal()
-        maven { url = 'https://maven.neoforged.net/releases' }
     }
 }