diff --git a/base/src/types.rs b/base/src/types.rs
index a4b0109..50e4800 100644
--- a/base/src/types.rs
+++ b/base/src/types.rs
@@ -407,7 +407,7 @@ impl Default for Font {
             u: false,
             b: false,
             i: false,
-            sz: 11,
+            sz: 13,
             color: Some("#000000".to_string()),
             name: "Calibri".to_string(),
             family: 2,
diff --git a/bindings/wasm/tests/test.mjs b/bindings/wasm/tests/test.mjs
index 468322e..3746699 100644
--- a/bindings/wasm/tests/test.mjs
+++ b/bindings/wasm/tests/test.mjs
@@ -49,7 +49,7 @@ test('Styles work', () => {
         num_fmt: 'general',
         fill: { pattern_type: 'none' },
         font: {
-            sz: 11,
+            sz: 13,
             color: '#000000',
             name: 'Calibri',
             family: 2,
@@ -64,7 +64,7 @@ test('Styles work', () => {
         num_fmt: 'general',
         fill: { pattern_type: 'none' },
         font: {
-            sz: 11,
+            sz: 13,
             color: '#000000',
             name: 'Calibri',
             family: 2,