diff --git a/src/display/update_lines.js b/src/display/update_lines.js
index 095cddef3f3348671a51c24b0dd4081d1a553f32..7583f3c15988cfb22a91d9dd5d18038c5b755f2d 100644
--- a/src/display/update_lines.js
+++ b/src/display/update_lines.js
@@ -21,7 +21,7 @@ export function updateHeightsInViewport(cm) {
     }
     let diff = cur.line.height - height
     if (height < 2) height = textHeight(display)
-    if (diff > .001 || diff < -.001) {
+    if (diff > .005 || diff < -.005) {
       updateLineHeight(cur.line, height)
       updateWidgetHeight(cur.line)
       if (cur.rest) for (let j = 0; j < cur.rest.length; j++)