diff --git a/.github/workflows/check-updated-changelog.yml b/.github/workflows/check-updated-changelog.yml
new file mode 100644
index 000000000..eb88f9108
--- /dev/null
+++ b/.github/workflows/check-updated-changelog.yml
@@ -0,0 +1,15 @@
+name: Check if the CHANGELOG.md has been updated
+
+on: [pull_request]
+
+jobs:
+  check:
+    name: Test on ${{ matrix.os }}
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Checking the CHANGELOG.md has been updated in this PR
+      run: |
+        set -e
+        git fetch origin ${{ github.base_ref }}
+        git diff --name-only origin/${{ github.base_ref }} | grep -q CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 000000000..dbee7cfb9
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+## 0.9.1 (unreleased)
+
+  - Add the number of hits in search result (#541)
+  - Add support for aligned crop in search result (#543)
+  - Sanitize the content displayed in the web interface (#539)