diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9d7be9a..3c0a869 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,8 +9,8 @@ on:
     paths-ignore:
       - '**.md'
   schedule:
-    # Build the image regularly (each Saturday)
-    - cron: '0 22 * * 6'
+    # Build the image daily
+    - cron: '0 0 * * *'
 
 env:
   REGISTRY: ghcr.io
@@ -29,11 +29,6 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Extract version for tags
-        run: |
-          echo "FULL_VERSION=$(grep -oP '(?<=SYNAPSE_VERSION=).*' Dockerfile)" >> $GITHUB_ENV
-          echo "MAJOR_VERSION=$(grep -oP '(?<=SYNAPSE_VERSION=).*' Dockerfile | head -c5)" >> $GITHUB_ENV
-
       - name: Install cosign
         if: github.event_name != 'pull_request'
         uses: sigstore/cosign-installer@v3
@@ -56,8 +51,6 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             latest
-            ${{ env.FULL_VERSION }}
-            ${{ env.MAJOR_VERSION }}
 
       - name: Build and push Docker image
         id: build-and-push
@@ -74,9 +67,11 @@ jobs:
         env:
           TAGS: ${{ steps.meta.outputs.tags }}
 
-  scan:
-    name: Scan current image & report results
+  trivy:
+    name: Scan current image with Trivy
     needs: build
+    permissions:
+      security-events: write
     runs-on: "ubuntu-latest"
     steps:
       - name: Run Trivy vulnerability scanner
@@ -93,3 +88,24 @@ jobs:
         uses: github/codeql-action/upload-sarif@v3
         with:
           sarif_file: 'trivy-results.sarif'
+          category: 'trivy'
+
+  grype:
+    name: Scan current image with Grype
+    needs: build
+    permissions:
+      security-events: write
+    runs-on: "ubuntu-latest"
+    steps:
+      - name: Run Grype vulnerability scanner
+        uses: anchore/scan-action@v3
+        id: grype
+        with:
+          image: "ghcr.io/tommytran732/synapse"
+          fail-build: false
+
+      - name: Upload Grype scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: ${{ steps.grype.outputs.sarif }}
+          category: grype
\ No newline at end of file
diff --git a/.github/workflows/scan.yml b/.github/workflows/scan.yml
deleted file mode 100644
index 64a59aa..0000000
--- a/.github/workflows/scan.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: Scan
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Scan the image regularly (once a day)
-    - cron: '0 23 * * *'
-
-jobs:
-  scan:
-    name: Scan current image & report results
-    runs-on: "ubuntu-latest"
-    steps:
-      - name: Run Trivy vulnerability scanner
-        uses: aquasecurity/trivy-action@master
-        with:
-          image-ref: 'ghcr.io/tommytran732/synapse'
-          format: 'template'
-          template: '@/contrib/sarif.tpl'
-          output: 'trivy-results.sarif'
-          severity: 'UNKNOWN,LOW,MEDIUM,HIGH,CRITICAL'
-          vuln-type: "os,library"
-
-      - name: Upload Trivy scan results to GitHub Security tab
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: 'trivy-results.sarif'
diff --git a/README.md b/README.md
index 591c7f5..2bfbfb2 100644
--- a/README.md
+++ b/README.md
@@ -5,16 +5,15 @@
 [Synapse](https://github.com/matrix-org/synapse) is a [Matrix](https://matrix.org/) implementation written in Python.
 
 ### Notes
-- Prebuilt images are available at `ghcr.io/tommytran732/synapse` and `quay.io/tommytran732/synapse`.
+- Prebuilt images are available at `ghcr.io/tommytran732/synapse`.
 - Don't trust random images: build yourself if you can.
 - Always keep your software up-to-date: manage versions with [build-time variables](https://github.com/TommyTran732/Synapse-Docker/blob/main/Dockerfile#L1-L4).
-- Images from `ghcr.io` are built every week and scanned every day for critical vulnerabilities with Trivy. I recommend that you use these images.
-- Images from `quay.io` are built on every push event and scanned for vulnerabilities with Clair.
 
 ### Features & usage
 - Drop-in replacement for the [official image](https://github.com/matrix-org/synapse/tree/develop/docker).
 - Unprivileged image: you should check your volumes permissions (eg `/data`), default UID/GID is 991.
 - Based on the latest [Alpine](https://alpinelinux.org/) containers which provide more recent packages while having less attack surface.
+- Daily rebuilds keeping the image up-to-date.
 - Comes with the [hardened memory allocator](https://github.com/GrapheneOS/hardened_malloc) built from the latest tag, protecting against some heap-based buffer overflows.
 - [Mjolnir module](https://github.com/matrix-org/mjolnir/blob/main/docs/synapse_module.md) support.