diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f79a20c..d8a0677 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,7 +12,7 @@ jobs:
 
     # This job runs in a special container designed for building Flatpaks for AppCenter
     container:
-      image: ghcr.io/elementary/flatpak-platform/runtime:6
+      image: bilelmoussaoui/flatpak-github-actions:gnome-45
       options: --privileged
 
     # Steps represent a sequence of tasks that will be executed as part of the job
@@ -26,12 +26,12 @@ jobs:
         # This is the name of the Bundle file we're building and can be anything you like
         bundle: Gradebook.flatpak
         # This uses your app's RDNN ID
-        manifest-path: io.github.leolost2605.gradebook.yml
+        manifest-path: io.github.leolost2605.gradebook.json
 
         # You can automatically run any of the tests you've created as part of this workflow
         run-tests: true
 
         # These lines specify the location of the elementary Runtime and Sdk
-        repository-name: appcenter
-        repository-url: https://flatpak.elementary.io/repo.flatpakrepo
+        repository-name: flathub
+        repository-url: https://dl.flathub.org/repo/flathub.flatpakrepo
         cache-key: "flatpak-builder-${{ github.sha }}"
diff --git a/io.github.leolost2605.gradebook.yml b/io.github.leolost2605.gradebook.yml
deleted file mode 100644
index 0ccca3d..0000000
--- a/io.github.leolost2605.gradebook.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-app-id: io.github.leolost2605.gradebook
-
-runtime: io.elementary.Platform
-runtime-version: '7.1'
-sdk: io.elementary.Sdk
-
-command: io.github.leolost2605.gradebook
-
-finish-args:
-  - '--share=ipc'
-  - '--socket=fallback-x11'
-  - '--socket=wayland'
-
-modules:
-  - name: gradebook
-    buildsystem: meson
-    sources:
-      - type: dir
-        path: .
\ No newline at end of file