diff --git a/isotables/isotopapp/views.py b/isotables/isotopapp/views.py
index 723b6a3..c1192cc 100644
--- a/isotables/isotopapp/views.py
+++ b/isotables/isotopapp/views.py
@@ -104,7 +104,7 @@ def result(request):
         ax.set_ylabel('z (mm)')
 
         buf = BytesIO()
-        plt.savefig(buf, format='png')
+        plt.savefig(buf, format='png', dpi=120)
         figure = base64.b64encode(buf.getvalue()).decode('utf-8').replace('\n', '')
         buf.close()
         ans = sorted(close_isotopes, key=lambda x: float(x[3]))