diff --git a/package-lock.json b/package-lock.json
index bd2182a6..52d16802 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,9 +11,9 @@
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@@ -44,12 +44,66 @@
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@@ -65,6 +119,12 @@
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@@ -95,6 +161,61 @@
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@@ -114,18 +235,163 @@
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@@ -188,18 +479,101 @@
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+      "version": "12.0.5",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
+      "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
+      "dev": true,
+      "requires": {
+        "cliui": "^4.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^1.0.1",
+        "os-locale": "^3.0.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^1.0.1",
+        "set-blocking": "^2.0.0",
+        "string-width": "^2.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^3.2.1 || ^4.0.0",
+        "yargs-parser": "^11.1.1"
+      }
+    },
+    "yargs-parser": {
+      "version": "11.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
+      "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
+    "yargs-unparser": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.5.0.tgz",
+      "integrity": "sha512-HK25qidFTCVuj/D1VfNiEndpLIeJN78aqgR23nL3y4N0U/91cOAzqfHlF8n2BvoNDcZmJKin3ddNSvOxSr8flw==",
+      "dev": true,
+      "requires": {
+        "flat": "^4.1.0",
+        "lodash": "^4.17.11",
+        "yargs": "^12.0.5"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 51a45616..fae4890b 100644
--- a/package.json
+++ b/package.json
@@ -18,12 +18,12 @@
     "url": "https://github.com/Microsoft/monaco-languages/issues"
   },
   "devDependencies": {
-    "jsdom": "^13.0.0",
-    "mocha": "^5.2.0",
-    "monaco-editor-core": "0.15.0",
+    "jsdom": "^13.2.0",
+    "mocha": "^6.0.2",
+    "monaco-editor-core": "0.16.0",
     "monaco-plugin-helpers": "^1.0.2",
     "requirejs": "^2.3.6",
-    "typescript": "3.1.6",
+    "typescript": "3.3.3333",
     "uglify-js": "^3.4.9"
   }
 }
diff --git a/src/dockerfile/dockerfile.ts b/src/dockerfile/dockerfile.ts
index ca020d88..78acd724 100644
--- a/src/dockerfile/dockerfile.ts
+++ b/src/dockerfile/dockerfile.ts
@@ -34,12 +34,6 @@ export const language = <ILanguage>{
 	defaultToken: '',
 	tokenPostfix: '.dockerfile',
 
-	instructions: /FROM|MAINTAINER|RUN|EXPOSE|ENV|ADD|ARG|VOLUME|LABEL|USER|WORKDIR|COPY|CMD|STOPSIGNAL|SHELL|HEALTHCHECK|ENTRYPOINT/,
-
-	instructionAfter: /ONBUILD/,
-
-	variableAfter: /ENV/,
-
 	variable: /\${?[\w]+}?/,
 
 	tokenizer: {
@@ -47,13 +41,9 @@ export const language = <ILanguage>{
 			{ include: '@whitespace' },
 			{ include: '@comment' },
 
-			[/(@instructionAfter)(\s+)/, ['keyword', { token: '', next: '@instructions' }]],
-			['', 'keyword', '@instructions']
-		],
-
-		instructions: [
-			[/(@variableAfter)(\s+)([\w]+)/, ['keyword', '', { token: 'variable', next: '@arguments' }]],
-			[/(@instructions)/, 'keyword', '@arguments']
+			[/(ONBUILD)(\s+)/, ['keyword', '']],
+			[/(ENV)(\s+)([\w]+)/, ['keyword', '', { token: 'variable', next: '@arguments' }]],
+			[/(FROM|MAINTAINER|RUN|EXPOSE|ENV|ADD|ARG|VOLUME|LABEL|USER|WORKDIR|COPY|CMD|STOPSIGNAL|SHELL|HEALTHCHECK|ENTRYPOINT)/, { token: 'keyword', next: '@arguments' }]
 		],
 
 		arguments: [