diff --git a/src/navigators/__tests__/__snapshots__/NestedNavigator-test.js.snap b/src/navigators/__tests__/__snapshots__/NestedNavigator-test.js.snap
index 9696d6879..ae75e44a3 100644
--- a/src/navigators/__tests__/__snapshots__/NestedNavigator-test.js.snap
+++ b/src/navigators/__tests__/__snapshots__/NestedNavigator-test.js.snap
@@ -238,7 +238,7 @@ exports[`Nested navigators renders succesfully as direct child 1`] = `
                             Object {
                               "color": "rgba(0, 0, 0, .9)",
                               "fontSize": 17,
-                              "fontWeight": "700",
+                              "fontWeight": "600",
                               "marginHorizontal": 16,
                               "textAlign": "center",
                             }
@@ -348,7 +348,7 @@ exports[`Nested navigators renders succesfully as direct child 1`] = `
                     Object {
                       "color": "rgba(0, 0, 0, .9)",
                       "fontSize": 17,
-                      "fontWeight": "700",
+                      "fontWeight": "600",
                       "marginHorizontal": 16,
                       "textAlign": "center",
                     }
diff --git a/src/navigators/__tests__/__snapshots__/StackNavigator-test.js.snap b/src/navigators/__tests__/__snapshots__/StackNavigator-test.js.snap
index 4ad8b769f..e142eddc1 100644
--- a/src/navigators/__tests__/__snapshots__/StackNavigator-test.js.snap
+++ b/src/navigators/__tests__/__snapshots__/StackNavigator-test.js.snap
@@ -168,7 +168,7 @@ exports[`StackNavigator applies correct values when headerRight is present 1`] =
                     Object {
                       "color": "rgba(0, 0, 0, .9)",
                       "fontSize": 17,
-                      "fontWeight": "700",
+                      "fontWeight": "600",
                       "marginHorizontal": 16,
                       "textAlign": "center",
                     }
@@ -372,7 +372,7 @@ exports[`StackNavigator renders successfully 1`] = `
                     Object {
                       "color": "rgba(0, 0, 0, .9)",
                       "fontSize": 17,
-                      "fontWeight": "700",
+                      "fontWeight": "600",
                       "marginHorizontal": 16,
                       "textAlign": "center",
                     }
diff --git a/src/views/Header/HeaderTitle.js b/src/views/Header/HeaderTitle.js
index 722842c8d..25cd01363 100644
--- a/src/views/Header/HeaderTitle.js
+++ b/src/views/Header/HeaderTitle.js
@@ -15,7 +15,7 @@ const HeaderTitle = ({ style, ...rest }) => (
 const styles = StyleSheet.create({
   title: {
     fontSize: Platform.OS === 'ios' ? 17 : 20,
-    fontWeight: Platform.OS === 'ios' ? '700' : '500',
+    fontWeight: Platform.OS === 'ios' ? '600' : '500',
     color: 'rgba(0, 0, 0, .9)',
     marginHorizontal: 16,
   },