diff --git a/app.py b/app.py
index 84f2993..9914dba 100644
--- a/app.py
+++ b/app.py
@@ -14,6 +14,7 @@ import shutil
 from shutil import copy2
 import logging
 import platform
+import os
 # --------------------------------------------------
 # Logging
 # --------------------------------------------------
@@ -407,9 +408,23 @@ def get_balance_comparison():
         result_data[names[idx]] = data
 
     return result_data
+@app.context_processor
+def inject_css_version():
+
+    return {
+        "css_version": int(
+            os.path.getmtime(
+                BASE_DIR / "static" / "style.css"
+            )
+        )
+    }
 @app.route("/")
 def index():
-
+    css_version = int(
+        os.path.getmtime(
+            BASE_DIR / "static" / "style.css"
+        )
+    )
     (
         year,
         week,
@@ -446,6 +461,7 @@ def index():
         total_expenses=total_expenses,
         total_saldo=total_saldo,
         balance=balance,
+        css_version=css_version,
         balance_color=balance_color,
         current_day=current_day,
         balance_history=balance_history
diff --git a/templates/index.html b/templates/index.html
index c5f377e..2eef50c 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -12,7 +12,7 @@
 </title>
 
 <link rel="stylesheet"
-      href="{{ url_for('static', filename='style.css') }}">
+      href="{{ url_for('static', filename='style.css') }}?v={{ css_version }}">
 
 
 <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>