diff --git a/Dockerfile.test b/Dockerfile.test
index 6ae003a..1aaddbb 100644
--- a/Dockerfile.test
+++ b/Dockerfile.test
@@ -30,8 +30,16 @@ COPY --from=builder /docs/site /usr/share/nginx/html
 # Create health check endpoint
 RUN echo '{"status":"healthy"}' > /usr/share/nginx/html/health
 
-# Configure nginx to listen on port 8000
-RUN sed -i 's/listen       80;/listen       8000;/' /etc/nginx/conf.d/default.conf
+# Configure nginx to listen on port 8000 and set Content-Type for /health
+RUN sed -i 's/listen       80;/listen       8000;/' /etc/nginx/conf.d/default.conf && \
+    cat >> /etc/nginx/conf.d/default.conf << 'EOF'
+
+    # Health check endpoint with proper Content-Type
+    location = /health {
+        default_type application/json;
+        add_header Content-Type application/json;
+    }
+EOF
 
 # Expose port 8000 (same as base image)
 EXPOSE 8000