diff --git a/backend/backend_app/serializers.py b/backend/backend_app/serializers.py
index aa8ac9aca832a718bd69304607467f1c5a0295f0..3e7e0ea883179ae048ba955f3186d1d1d5615f3e 100644
--- a/backend/backend_app/serializers.py
+++ b/backend/backend_app/serializers.py
@@ -34,6 +34,7 @@ class CourseFeedbackSerializer(EssentialModuleSerializer):
             "following_ease",
             "untouched",
         )
+        read_only_fields = ("untouched",)
 
 
 COURSE_FIELDS = BaseModelSerializer.Meta.fields + (
diff --git a/backend/cron_tasks.py b/backend/cron_tasks.py
index 12420f818a9bafad10209fc2e58a5152ba15ecd3..46f2edaa767afcb9d3b69ed4b6eb0bf089621a00 100644
--- a/backend/cron_tasks.py
+++ b/backend/cron_tasks.py
@@ -25,7 +25,7 @@ logger = logging.getLogger("django")
 
 
 # @timer(60, target="spooler")  # use this for tests
-@timer(3 * 60 * 60, target="spooler")  # run it three hours
+@cron(5, 0, -1, -1, -1, target="spooler")  # everyday at 5 past midnight
 @harakiri(40)
 def _update_currencies(num):
     update_currencies()
diff --git a/documentation/GettingStarted/init_data.md b/documentation/GettingStarted/init_data.md
index 463df7208d42e4d1d6779aa7733383096237a108..4e0eca4357a30cc678c568710067237e870a94af 100644
--- a/documentation/GettingStarted/init_data.md
+++ b/documentation/GettingStarted/init_data.md
@@ -13,7 +13,10 @@ If you have access to [a production database backup](ProdRelated/dump_database),
 - decrypt it (**You will need a passphrase for this.**):
 
 ```bash
-cd /tmp && gpg-zip --decrypt rex-dri.dump.gpg
+# If gpgtar is not available, try gpg-zip
+cd /tmp && gpgtar --decrypt rex-dri.dump.gpg
+# the last operation may create the final in another location like /tmp/rex-dri.dump_1_/rex-dri.dump
+# In such case, move the file to the appropriate location
 test -f /tmp/rex-dri.dump && echo "Database dump decrypted"
 ```
 
diff --git a/frontend/src/components/university/modules/previousExchangeFeedback/CourseFeedback.jsx b/frontend/src/components/university/modules/previousExchangeFeedback/CourseFeedback.jsx
index 913b96b3fdcfed0678ba7bc6e42197eeb4e4413f..edbfb550e5b22fca32dd2c4045dcde8b1efa22cf 100644
--- a/frontend/src/components/university/modules/previousExchangeFeedback/CourseFeedback.jsx
+++ b/frontend/src/components/university/modules/previousExchangeFeedback/CourseFeedback.jsx
@@ -98,7 +98,7 @@ export function CourseFeedbackCore(props) {
 
       {languageName && (
         <Typography>
-          Cours enseigné en
+          Cours enseigné en&nbsp;
           {LanguageService.getLanguageName(languageCode)}.
         </Typography>
       )}