diff --git a/admin/dashboard/templates/index.html b/admin/dashboard/templates/index.html
index 33786b3..4c15b9c 100644
--- a/admin/dashboard/templates/index.html
+++ b/admin/dashboard/templates/index.html
@@ -160,8 +160,8 @@
                         </el-select>
                     </div>
                 </div>
-                <div class="chart-container">
-                    <canvas id="hourlyMessageTrendChart" height="100"></canvas>
+                <div class="chart-container" style="height: 150px;">
+                    <canvas id="hourlyMessageTrendChart"></canvas>
                 </div>
             </el-card>
         </el-col>