diff --git a/scripts/fill-user-etablissement-field.tsx b/scripts/fill-user-etablissement-field.tsx
index 1c6b00c7..296600c7 100644
--- a/scripts/fill-user-etablissement-field.tsx
+++ b/scripts/fill-user-etablissement-field.tsx
@@ -8,25 +8,27 @@ async function main() {
       nom_etablissement: null,
     },
   });
-
-  usersToProcess.map(async (userToProcess) => {
-    // @ts-ignore
-    const siret = userToProcess.agentconnect_info?.siret;
-    if (siret) {
-      await new Promise((r) => setTimeout(r, 300));
-      const entityFromSiret = await fetchEntrepriseFromSirenApi(siret);
-      if (entityFromSiret?.etablissement) {
-        await updateUserEtablissementInfo(
-          userToProcess.id,
-          entityFromSiret.etablissement?.uniteLegale?.denominationUniteLegale,
-          entityFromSiret.etablissement,
-        );
+  const interval = 1000; // how much time should the delay between two iterations be (in milliseconds)?
+  usersToProcess.forEach(function (userToProcess, index) {
+    setTimeout(async function () {
+      // @ts-ignore
+      const siret = userToProcess.agentconnect_info?.siret;
+      if (siret) {
+        const entityFromSiret = await fetchEntrepriseFromSirenApi(siret);
+        if (entityFromSiret?.etablissement) {
+          await updateUserEtablissementInfo(
+            userToProcess.id,
+            entityFromSiret.etablissement?.uniteLegale?.denominationUniteLegale,
+            entityFromSiret.etablissement,
+          );
+        }
+        console.log(`L'utilisateur ${userToProcess.email} a été mis à jour`);
+      } else {
+        console.log(`L'utilisateur ${userToProcess.email} n'a pas de siret`);
       }
-      console.log(`L'utilisateur ${userToProcess.email} a été mis à jour`);
-    } else {
-      console.log(`L'utilisateur ${userToProcess.email} n'a pas de siret`);
-    }
+    }, index * interval);
   });
+  console.log("Loop finished.");
 }
 
 main();