diff --git a/heatmap-tool/docker-compose.yml b/heatmap-tool/docker-compose.yml
index 6a392936..9aea2fd2 100644
--- a/heatmap-tool/docker-compose.yml
+++ b/heatmap-tool/docker-compose.yml
@@ -4,7 +4,7 @@ services:
   backend:
     build: ./backend
     ports:
-      - "8001:8000"
+      - "8002:8000"
     volumes:
       - ./backend:/app
 
diff --git a/heatmap-tool/frontend/src/App.tsx b/heatmap-tool/frontend/src/App.tsx
index 5913075a..81824e3a 100644
--- a/heatmap-tool/frontend/src/App.tsx
+++ b/heatmap-tool/frontend/src/App.tsx
@@ -35,7 +35,7 @@ function App() {
     setIsLoading(true);
     setError(null);
     try {
-      const response = await axios.post('http://localhost:8001/api/heatmap', {
+      const response = await axios.post('http://localhost:8002/api/heatmap', {
         filters: selectedFilters,
       });
       setHeatmapData(response.data);
diff --git a/heatmap-tool/frontend/src/components/FileUpload.tsx b/heatmap-tool/frontend/src/components/FileUpload.tsx
index 436db851..4ccd5f3c 100644
--- a/heatmap-tool/frontend/src/components/FileUpload.tsx
+++ b/heatmap-tool/frontend/src/components/FileUpload.tsx
@@ -39,7 +39,7 @@ const FileUpload: React.FC<FileUploadProps> = ({ onUploadSuccess, setIsLoading,
     setError(null);
 
     try {
-      const response = await axios.post('http://localhost:8001/api/upload', formData, {
+      const response = await axios.post('http://localhost:8002/api/upload', formData, {
         headers: {
           'Content-Type': 'multipart/form-data',
         },