diff --git a/tools/recompute_fk_difficulties.py b/tools/recompute_fk_difficulties.py
new file mode 100644
index 00000000..cd236bba
--- /dev/null
+++ b/tools/recompute_fk_difficulties.py
@@ -0,0 +1,36 @@
+import zeeguu.core
+from zeeguu.api.app import create_app
+from zeeguu.core.model import Article, Language
+from zeeguu.core.language.difficulty_estimator_factory import DifficultyEstimatorFactory
+
+VERBOSE = False
+CHECKPOINT_STEP = 10000
+
+app = create_app()
+app.app_context().push()
+
+print("starting...")
+
+session = zeeguu.core.model.db.session
+articles_to_update = Article.query.filter(
+    Article.language.has(Language.code.in_(["es", "fr", "it", "nl", "ru"]))
+).all()
+for i, article in enumerate(articles_to_update):
+    if VERBOSE:
+        print(f"Article language: {article.language}")
+        print(f"Difficulty before: {article.fk_difficulty} for {article.title}")
+    fk_estimator = DifficultyEstimatorFactory.get_difficulty_estimator("fk")
+    fk_difficulty = fk_estimator.estimate_difficulty(
+        article.content, article.language, None
+    )["grade"]
+
+    article.fk_difficulty = fk_difficulty
+    if VERBOSE:
+        print(f"Difficulty after: {article.fk_difficulty} for {article.title}\n")
+
+    session.add(article)
+    if (i + 1) % CHECKPOINT_STEP == 0:
+        print("Checkpointing changes, commiting...")
+        session.commit()
+        print(f"Checkpoint done, completed ({i+1}/{len(articles_to_update)}).")
+session.commit()