diff --git a/Source/SLKTextInputbar.m b/Source/SLKTextInputbar.m
index 3b90bbfc..38b7d792 100644
--- a/Source/SLKTextInputbar.m
+++ b/Source/SLKTextInputbar.m
@@ -578,6 +578,9 @@ - (void)slk_didChangeTextViewContentSize:(NSNotification *)notification
         BOOL shouldHide = (self.textView.numberOfLines == 1) || self.editing;
         self.charCountLabel.hidden = shouldHide;
     }
+    dispatch_async(dispatch_get_main_queue(), ^{
+        [self slk_updateConstraintConstants];
+    });
 }
 
 - (void)slk_didChangeContentSizeCategory:(NSNotification *)notification