diff --git a/examples/gallery/basemaps/ternary.py b/examples/gallery/basemaps/ternary.py
index 3900447cef7..6a7ab357570 100644
--- a/examples/gallery/basemaps/ternary.py
+++ b/examples/gallery/basemaps/ternary.py
@@ -14,7 +14,7 @@
 
 # %%
 import pygmt
-from pygmt.params import Position
+from pygmt.params import Axis, Frame, Position
 
 fig = pygmt.Figure()
 
@@ -34,11 +34,13 @@
     blabel="Water",
     clabel="Air",
     cmap=True,
-    frame=[
-        "aafg+lLimestone component+u %",
-        "bafg+lWater component+u %",
-        "cafg+lAir component+u %",
-    ],
+    frame=Frame(
+        aaxis=Axis(
+            annot=True, tick=True, grid=True, label="Limestone component", unit="%"
+        ),
+        baxis=Axis(annot=True, tick=True, grid=True, label="Water component", unit="%"),
+        caxis=Axis(annot=True, tick=True, grid=True, label="Air component", unit="%"),
+    ),
 )
 
 # Add a colorbar indicating the values given in the fourth column of the input dataset