diff --git a/vendor-overwrites/csslint/csslint-worker.js b/vendor-overwrites/csslint/csslint-worker.js
index bb81b245..2c3584c2 100644
--- a/vendor-overwrites/csslint/csslint-worker.js
+++ b/vendor-overwrites/csslint/csslint-worker.js
@@ -8520,13 +8520,13 @@ CSSLint.addRule({
             "border-start-color"         : "webkit moz",
             "border-start-style"         : "webkit moz",
             "border-start-width"         : "webkit moz",
-            "box-align"                  : "webkit moz ms",
-            "box-direction"              : "webkit moz ms",
-            "box-flex"                   : "webkit moz ms",
-            "box-lines"                  : "webkit ms",
-            "box-ordinal-group"          : "webkit moz ms",
-            "box-orient"                 : "webkit moz ms",
-            "box-pack"                   : "webkit moz ms",
+            "box-align"                  : "webkit moz",
+            "box-direction"              : "webkit moz",
+            "box-flex"                   : "webkit moz",
+            "box-lines"                  : "webkit",
+            "box-ordinal-group"          : "webkit moz",
+            "box-orient"                 : "webkit moz",
+            "box-pack"                   : "webkit moz",
             "box-sizing"                 : "",
             "box-shadow"                 : "",
             "column-count"               : "webkit moz ms",
@@ -8536,6 +8536,12 @@ CSSLint.addRule({
             "column-rule-style"          : "webkit moz ms",
             "column-rule-width"          : "webkit moz ms",
             "column-width"               : "webkit moz ms",
+            "flex"                       : "webkit ms",
+            "flex-basis"                 : "webkit",
+            "flex-direction"             : "webkit ms",
+            "flex-flow"                  : "webkit",
+            "flex-grow"                  : "webkit",
+            "flex-shrink"                : "webkit",
             "hyphens"                    : "epub moz",
             "line-break"                 : "webkit ms",
             "margin-end"                 : "webkit moz",