diff --git a/.circleci/config.yml b/.circleci/config.yml
index e0d2b48b9f..ae769b2b81 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,7 +9,7 @@ orbs:
 jobs:
   publish:
     machine:
-      image: ubuntu-2204:2024.05.1
+      image: ubuntu-2204:2024.08.1
     resource_class: large
     environment:
       _JAVA_OPTIONS: -Xmx3200m
diff --git a/.circleci/continue_config.yml b/.circleci/continue_config.yml
index 46e5781448..82bdcdd083 100644
--- a/.circleci/continue_config.yml
+++ b/.circleci/continue_config.yml
@@ -6,7 +6,7 @@ orbs:
 parameters:
   artifact-name:
     type: string
-    default: aether-1.21.1-1.5.1-neoforge.jar
+    default: aether-1.21.1-1.5.1-beta.1-neoforge.jar
   deploy-branch:
     type: string
     default: 1.21.1-develop
@@ -17,7 +17,7 @@ parameters:
 jobs:
   build:
     machine:
-      image: ubuntu-2204:2023.02.1
+      image: ubuntu-2404:2024.08.1
     resource_class: large
     environment:
       _JAVA_OPTIONS: -Xmx9600m
diff --git a/.github/workflows/publish-curseforge.yml b/.github/workflows/publish-curseforge.yml
index 3e30558f99..c6ddc71dbd 100644
--- a/.github/workflows/publish-curseforge.yml
+++ b/.github/workflows/publish-curseforge.yml
@@ -11,10 +11,10 @@ jobs:
     - uses: actions/setup-java@v3
       with:
         distribution: temurin
-        java-version: 17
+        java-version: 21
     - uses: gradle/gradle-build-action@v2.4.2
       with:
-        gradle-version: 8.1
+        gradle-version: 8.8
     - name: Publish build
       env:
         CURSEFORGE_TOKEN: ${{ secrets.CURSEFORGE_TOKEN }}
diff --git a/.github/workflows/publish-modrinth.yml b/.github/workflows/publish-modrinth.yml
index fcfafb0fc3..f721c2ef14 100644
--- a/.github/workflows/publish-modrinth.yml
+++ b/.github/workflows/publish-modrinth.yml
@@ -11,10 +11,10 @@ jobs:
     - uses: actions/setup-java@v3
       with:
         distribution: temurin
-        java-version: 17
+        java-version: 21
     - uses: gradle/gradle-build-action@v2.4.2
       with:
-        gradle-version: 8.1
+        gradle-version: 8.8
     - name: Publish build
       env:
         MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}
diff --git a/update.json b/update.json
index ccd71170d0..b9492e3bba 100644
--- a/update.json
+++ b/update.json
@@ -6,6 +6,6 @@
     "1.20.1-recommended": "1.20.1-1.5.1-neoforge",
     "1.20.2-recommended": "1.20.2-1.5.1-neoforge",
     "1.20.4-recommended": "1.20.4-1.5.1-neoforge",
-    "1.21.1-recommended": "1.21.1-1.5.1-neoforge"
+    "1.21.1-recommended": "1.21.1-1.5.1-beta.1-neoforge"
   }
 }