diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3db77258..705c8d8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/). Versionin
 ## 1.155.0
 ### Fixed
 - Updated to M155 schema including some new tasks
+- Several improvements to validation and auto-complete
 
 ## 1.152.0
 ### Added
diff --git a/package-lock.json b/package-lock.json
index 76292b83..c4cce335 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -2900,23 +1137,14 @@
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+                    "version": "0.5.13",
+                    "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.13.tgz",
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@@ -2955,7 +1183,7 @@
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-            "resolved": "http://registry.npmjs.org/vscode-languageserver/-/vscode-languageserver-4.1.2.tgz",
+            "resolved": "https://registry.npmjs.org/vscode-languageserver/-/vscode-languageserver-4.1.2.tgz",
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@@ -2981,6 +1209,16 @@
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         },
+        "vscode-test": {
+            "version": "0.4.3",
+            "resolved": "https://registry.npmjs.org/vscode-test/-/vscode-test-0.4.3.tgz",
+            "integrity": "sha512-EkMGqBSefZH2MgW65nY05rdRSko15uvzq4VAPM5jVmwYuFQKE7eikKXNJDRxL+OITXHB6pI+a3XqqD32Y3KC5w==",
+            "dev": true,
+            "requires": {
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+                "https-proxy-agent": "^2.2.1"
+            }
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@@ -2992,36 +1230,11 @@
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-            "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-            "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
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-        "yauzl": {
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-            "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
-            "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
-            "dev": true,
-            "requires": {
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-        "yazl": {
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-            "resolved": "https://registry.npmjs.org/yazl/-/yazl-2.5.0.tgz",
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diff --git a/package.json b/package.json
index f1041c9a..a4a74d15 100644
--- a/package.json
+++ b/package.json
@@ -93,19 +93,19 @@
         "unittest": "node_modules/.bin/mocha -u tdd out/unittest/*.js"
     },
     "devDependencies": {
+        "@types/mocha": "5.2.5",
+        "@types/node": "7.0.43",
+        "@types/q": "1.5.0",
+        "@types/underscore": "1.8.9",
         "assert": "1.4.1",
         "mocha": "5.2.0",
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         "tslint": "5.8.0",
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-        "@types/node": "7.0.43",
-        "@types/q": "1.5.0",
-        "@types/underscore": "1.8.9"
+        "vscode": "^1.1.35"
     },
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-        "azure-pipelines-language-server": "0.5.4",
+        "azure-pipelines-language-server": "0.5.9",
         "q": "1.5.1",
         "shelljs": "^0.3.0",
         "typed-rest-client": "1.0.7",