diff --git a/.github/workflows/pr-cleanup.yaml b/.github/workflows/pr-cleanup.yaml
new file mode 100644
index 000000000..10d342307
--- /dev/null
+++ b/.github/workflows/pr-cleanup.yaml
@@ -0,0 +1,24 @@
+name: PR clean up
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  deploy-context:
+    runs-on: ubuntu-18.04
+    outputs:
+      env-name: ${{ steps.deploy-env.outputs.name }}
+    steps:
+      - id: deploy-env
+        run: echo "::set-output name=name::${{ github.event.number || '${GITHUB_REF#refs/*/}' }}"
+
+  algolia-rm-temp-index:
+    needs: deploy-context
+    runs-on: ubuntu-18.04
+    steps:
+      - name: Remove temporary algolia index
+        run: yarn workspace mon-entreprise algolia:clean
+        env:
+          ALGOLIA_APP_ID: ${{ secrets.ALGOLIA_APP_ID }}
+          ALGOLIA_ADMIN_KEY: ${{ secrets.ALGOLIA_ADMIN_KEY }}
+          ALGOLIA_INDEX_PREFIX: monentreprise-${{needs.deploy-context.outputs.env-name}}-
diff --git a/mon-entreprise/package.json b/mon-entreprise/package.json
index 4860cdbb5..d0fc5b3a7 100644
--- a/mon-entreprise/package.json
+++ b/mon-entreprise/package.json
@@ -134,6 +134,7 @@
 		"serve:dev:mon-entreprise": "PORT=5000 serve --config serve.mon-entreprise.json --no-clipboard",
 		"serve:dev:publicodes": "PORT=5002 serve --config serve.publicodes.json --no-clipboard",
 		"serve:dev:mycompanyinfrance": "PORT=5001 serve --config serve.infrance.json --no-clipboard",
-		"algolia:update": "node scripts/search/update-data.js"
+		"algolia:update": "node scripts/search/update-data.js",
+		"algolia:clean": "node scripts/search/clean.js"
 	}
 }
diff --git a/mon-entreprise/scripts/search/clean.js b/mon-entreprise/scripts/search/clean.js
new file mode 100644
index 000000000..3ca853c04
--- /dev/null
+++ b/mon-entreprise/scripts/search/clean.js
@@ -0,0 +1,17 @@
+require('dotenv').config()
+
+const algoliasearch = require('algoliasearch')
+
+const {
+	ALGOLIA_APP_ID,
+	ALGOLIA_ADMIN_KEY,
+	ALGOLIA_INDEX_PREFIX = '',
+} = process.env
+
+const client = algoliasearch(ALGOLIA_APP_ID, ALGOLIA_ADMIN_KEY)
+
+const rulesIndex = client.initIndex(`${ALGOLIA_INDEX_PREFIX}rules`)
+const simulateursIndex = client.initIndex(`${ALGOLIA_INDEX_PREFIX}simulateurs`)
+
+rulesIndex.delete()
+simulateursIndex.delete()