diff --git a/vendor-overwrites/csslint/csslint-worker.js b/vendor-overwrites/csslint/csslint-worker.js
index c76ae6cb..bebc053a 100644
--- a/vendor-overwrites/csslint/csslint-worker.js
+++ b/vendor-overwrites/csslint/csslint-worker.js
@@ -3604,33 +3604,33 @@ var Properties = module.exports = {
     "gap"                           : "[ <length> | normal ]{1,2}",
     "glyph-orientation-horizontal"  : "<glyph-angle>",
     "glyph-orientation-vertical"    : "auto | <glyph-angle>",
-    "grid"                          : 1,
-    "grid-area"                     : 1,
-    "grid-auto-columns"             : 1,
-    "grid-auto-flow"                : 1,
+    "grid"                          : "<grid-template> | <grid-template-rows> / [ auto-flow && dense? ] <grid-auto-columns>? | [ auto-flow && dense? ] <grid-auto-rows>? / <grid-template-columns>",
+    "grid-area"                     : "<grid-line> [ / <grid-line> ]{0,3}",
+    "grid-auto-columns"             : "<track-size>+",
+    "grid-auto-flow"                : "[ row | column ] || dense",
     "grid-auto-position"            : 1,
-    "grid-auto-rows"                : 1,
+    "grid-auto-rows"                : "<track-size>+",
     "grid-cell-stacking"            : "columns | rows | layer",
-    "grid-column"                   : 1,
+    "grid-column"                   : "<grid-line> [ / <grid-line> ]?",
     "grid-columns"                  : 1,
     "grid-column-align"             : "start | end | center | stretch",
     "grid-column-sizing"            : 1,
-    "grid-column-start"             : 1,
-    "grid-column-end"               : 1,
+    "grid-column-start"             : "<grid-line>",
+    "grid-column-end"               : "<grid-line>",
     "grid-column-span"              : "<integer>",
     "grid-flow"                     : "none | rows | columns",
     "grid-layer"                    : "<integer>",
-    "grid-row"                      : 1,
+    "grid-row"                      : "<grid-line> [ / <grid-line> ]?",
     "grid-rows"                     : 1,
     "grid-row-align"                : "start | end | center | stretch",
-    "grid-row-start"                : 1,
-    "grid-row-end"                  : 1,
+    "grid-row-start"                : "<grid-line>",
+    "grid-row-end"                  : "<grid-line>",
     "grid-row-span"                 : "<integer>",
     "grid-row-sizing"               : 1,
-    "grid-template"                 : 1,
-    "grid-template-areas"           : 1,
-    "grid-template-columns"         : 1,
-    "grid-template-rows"            : 1,
+    "grid-template"                 : "none | [ <grid-template-rows> / <grid-template-columns> ] | [ <line-names>? <string> <track-size>? <line-names>? ]+ [ / <explicit-track-list> ]?",
+    "grid-template-areas"           : "none | <string>+",
+    "grid-template-columns"         : "none | <track-list> | <auto-track-list>",
+    "grid-template-rows"            : "none | <track-list> | <auto-track-list>",
 
     //H
     "hanging-punctuation"           : 1,