diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -9,7 +9,7 @@
   'names' => array(
     'conpherence.pkg.css' => '2f25eb4f',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => '112931ab',
+    'core.pkg.css' => 'a3eea9ef',
     'core.pkg.js' => 'f58c3c6e',
     'dark-console.pkg.js' => '187792c2',
     'differential.pkg.css' => '94bb10ca',
@@ -124,7 +124,7 @@
     'rsrc/css/layout/phabricator-source-code-view.css' => 'e382316a',
     'rsrc/css/phui/button/phui-button-bar.css' => 'a4aa75c4',
     'rsrc/css/phui/button/phui-button-simple.css' => '1ff278aa',
-    'rsrc/css/phui/button/phui-button.css' => '55025b10',
+    'rsrc/css/phui/button/phui-button.css' => '430e7f8a',
     'rsrc/css/phui/calendar/phui-calendar-day.css' => '9597d706',
     'rsrc/css/phui/calendar/phui-calendar-list.css' => 'ccd7e4e2',
     'rsrc/css/phui/calendar/phui-calendar-month.css' => 'cb758c42',
@@ -828,7 +828,7 @@
     'phui-box-css' => '5ed3b8cb',
     'phui-bulk-editor-css' => '374d5e30',
     'phui-button-bar-css' => 'a4aa75c4',
-    'phui-button-css' => '55025b10',
+    'phui-button-css' => '430e7f8a',
     'phui-button-simple-css' => '1ff278aa',
     'phui-calendar-css' => 'f11073aa',
     'phui-calendar-day-css' => '9597d706',
diff --git a/webroot/rsrc/css/phui/button/phui-button.css b/webroot/rsrc/css/phui/button/phui-button.css
--- a/webroot/rsrc/css/phui/button/phui-button.css
+++ b/webroot/rsrc/css/phui/button/phui-button.css
@@ -102,7 +102,6 @@
 button[disabled] {
   filter:alpha(opacity=50);
   -moz-opacity: 0.5;
-  -khtml-opacity: 0.5;
   opacity: 0.5;
 }