diff --git a/package-lock.json b/package-lock.json
index c8ec136fd..680b7abdd 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -11258,16 +11015,18 @@
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     },
     "unified": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/unified/-/unified-6.2.0.tgz",
-      "integrity": "sha512-1k+KPhlVtqmG99RaTbAv/usu85fcSRu3wY8X+vnsEhIxNP5VbVIDiXnLqyKIG+UMdyTg0ZX9EI6k2AfjJkHPtA==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/unified/-/unified-7.1.0.tgz",
+      "integrity": "sha512-lbk82UOIGuCEsZhPj8rNAkXSDXd6p0QLzIuSsCdxrqnqU56St4eyOB+AlXsVgVeRmetPTYydIuvFfpDIed8mqw==",
       "dev": true,
       "requires": {
+        "@types/unist": "^2.0.0",
+        "@types/vfile": "^3.0.0",
         "bail": "^1.0.0",
         "extend": "^3.0.0",
         "is-plain-obj": "^1.1.0",
         "trough": "^1.0.0",
-        "vfile": "^2.0.0",
+        "vfile": "^3.0.0",
         "x-is-string": "^0.1.0"
       }
     },
@@ -11542,15 +11301,23 @@
       }
     },
     "vfile": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/vfile/-/vfile-2.3.0.tgz",
-      "integrity": "sha512-ASt4mBUHcTpMKD/l5Q+WJXNtshlWxOogYyGYYrg4lt/vuRjC1EFQtlAofL5VmtVNIZJzWYFJjzGWZ0Gw8pzW1w==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/vfile/-/vfile-3.0.1.tgz",
+      "integrity": "sha512-y7Y3gH9BsUSdD4KzHsuMaCzRjglXN0W2EcMf0gpvu6+SbsGhMje7xDc8AEoeXy6mIwCKMI6BkjMsRjzQbhMEjQ==",
       "dev": true,
       "requires": {
-        "is-buffer": "^1.1.4",
+        "is-buffer": "^2.0.0",
         "replace-ext": "1.0.0",
         "unist-util-stringify-position": "^1.0.0",
         "vfile-message": "^1.0.0"
+      },
+      "dependencies": {
+        "is-buffer": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.3.tgz",
+          "integrity": "sha512-U15Q7MXTuZlrbymiz95PJpZxu8IlipAp4dtS3wOdgPXx3mqBnslrWU14kxfHB+Py/+2PVKSr37dMAgM2A4uArw==",
+          "dev": true
+        }
       }
     },
     "vfile-location": {
@@ -11574,6 +11341,36 @@
       "integrity": "sha512-iq+S7vZJE60yejDYM0ek6zg308+UZsdtPExWP9VZoCFCz1zkJoXFnAX7aZfd/ZwrkidzdUZL0C/ryW+JwAiIGw==",
       "dev": true
     },
+    "vscode-json-languageservice": {
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/vscode-json-languageservice/-/vscode-json-languageservice-3.3.1.tgz",
+      "integrity": "sha512-Qyvlrftexu1acvwbMt+CDehVrDZtFV1GAJrKdOCHQL9bWNhzI06KEiSd4iXR0NUOuAdroG/uU4wBkH6e5CcTXg==",
+      "dev": true,
+      "requires": {
+        "jsonc-parser": "^2.1.0",
+        "vscode-languageserver-types": "^3.15.0-next.2",
+        "vscode-nls": "^4.1.1",
+        "vscode-uri": "^2.0.3"
+      }
+    },
+    "vscode-languageserver-types": {
+      "version": "3.15.0-next.2",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.15.0-next.2.tgz",
+      "integrity": "sha512-2JkrMWWUi2rlVLSo9OFR2PIGUzdiowEM8NgNYiwLKnXTjpwpjjIrJbNNxDik7Rv4oo9KtikcFQZKXbrKilL/MQ==",
+      "dev": true
+    },
+    "vscode-nls": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/vscode-nls/-/vscode-nls-4.1.1.tgz",
+      "integrity": "sha512-4R+2UoUUU/LdnMnFjePxfLqNhBS8lrAFyX7pjb2ud/lqDkrUavFUTcG7wR0HBZFakae0Q6KLBFjMS6W93F403A==",
+      "dev": true
+    },
+    "vscode-uri": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/vscode-uri/-/vscode-uri-2.0.3.tgz",
+      "integrity": "sha512-4D3DI3F4uRy09WNtDGD93H9q034OHImxiIcSq664Hq1Y1AScehlP3qqZyTkX/RWxeu0MRMHGkrxYqm2qlDF/aw==",
+      "dev": true
+    },
     "w3c-hr-time": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz",
diff --git a/package.json b/package.json
index 7566cdd70..9339258c5 100644
--- a/package.json
+++ b/package.json
@@ -24,11 +24,11 @@
     "@types/jquery": "3.3.29",
     "@wikimedia/mw-node-qunit": "5.0.0",
     "babel-loader": "8.0.4",
-    "bundlesize": "0.17.0",
+    "bundlesize": "0.18.0",
     "clean-webpack-plugin": "1.0.0",
-    "eslint-config-wikimedia": "0.11.0",
-    "grunt": "1.0.3",
-    "grunt-banana-checker": "0.6.0",
+    "eslint-config-wikimedia": "0.12.0",
+    "grunt": "1.0.4",
+    "grunt-banana-checker": "0.7.0",
     "grunt-contrib-watch": "1.1.0",
     "grunt-eslint": "21.0.0",
     "grunt-jsonlint": "1.1.0",
@@ -39,7 +39,7 @@
     "pre-commit": "1.2.2",
     "redux": "4.0.1",
     "redux-thunk": "2.3.0",
-    "stylelint-config-wikimedia": "0.5.0",
+    "stylelint-config-wikimedia": "0.6.0",
     "svg-inline-loader": "0.8.0",
     "tap-mocha-reporter": "3.0.7",
     "wdio-junit-reporter": "0.4.4",
diff --git a/src/ui/templates/popup/popup.less b/src/ui/templates/popup/popup.less
index cd516bad3..264e6f06f 100644
--- a/src/ui/templates/popup/popup.less
+++ b/src/ui/templates/popup/popup.less
@@ -215,7 +215,7 @@
 
 	&.mwe-popups-image-pointer {
 		&:before {
-			.mwe-popups-border-pointer-top( 9px, 9px, @colorGray10, 0px );
+			.mwe-popups-border-pointer-top( 9px, 9px, @colorGray10, 0 );
 			z-index: @zIndexBackground;
 		}
 
@@ -226,7 +226,7 @@
 
 		&.flipped-x {
 			&:before {
-				.mwe-popups-border-pointer-top( 9px, 293px, @colorGray10, 0px );
+				.mwe-popups-border-pointer-top( 9px, 293px, @colorGray10, 0 );
 			}
 
 			&:after {
@@ -252,7 +252,7 @@
 		min-height: 242px;
 
 		&:before {
-			.mwe-popups-border-pointer-top( 9px, 420px, @colorGray10, 0px );
+			.mwe-popups-border-pointer-top( 9px, 420px, @colorGray10, 0 );
 			z-index: @zIndexBackground;
 		}
 
@@ -268,7 +268,7 @@
 
 	&.flipped-x-y {
 		&:before {
-			.mwe-popups-border-pointer-bottom( 9px, 293px, @colorGray10, 0px );
+			.mwe-popups-border-pointer-bottom( 9px, 293px, @colorGray10, 0 );
 			z-index: @zIndexBackground;
 		}
 
@@ -281,7 +281,7 @@
 			min-height: 242px;
 
 			&:before {
-				.mwe-popups-border-pointer-bottom( 9px, 420px, @colorGray10, 0px );
+				.mwe-popups-border-pointer-bottom( 9px, 420px, @colorGray10, 0 );
 			}
 
 			&:after {
@@ -300,7 +300,7 @@
 
 	&.flipped-y {
 		&:before {
-			.mwe-popups-border-pointer-bottom( 8px, 10px, @colorGray10, 0px );
+			.mwe-popups-border-pointer-bottom( 8px, 10px, @colorGray10, 0 );
 		}
 
 		&:after {