diff --git a/tools/recompute_fk_difficulties.py b/tools/recompute_fk_difficulties.py
new file mode 100644
index 00000000..5cf9d133
--- /dev/null
+++ b/tools/recompute_fk_difficulties.py
@@ -0,0 +1,28 @@
+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
+
+app = create_app()
+app.app_context().push()
+
+print("starting...")
+
+
+session = zeeguu.core.model.db.session
+with session.begin():
+    for article in Article.query.filter(
+        Article.language.has(Language.code.in_(["es", "fr", "it", "nl", "ru"]))
+    ).all():
+        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
+        print(f"Difficulty after: {article.fk_difficulty} for {article.title}\n")
+
+        session.add(article)
+    session.commit()