diff --git a/tools/rls/src/package-lock.json b/tools/rls/src/package-lock.json
index 30e820f..8255727 100644
--- a/tools/rls/src/package-lock.json
+++ b/tools/rls/src/package-lock.json
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-      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz",
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@@ -6470,6 +6711,12 @@
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@@ -6501,6 +6748,12 @@
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+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
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@@ -6751,16 +7005,30 @@
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+      "integrity": "sha1-5z3T17DXxe2G+6xrCufYxqadUPo=",
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-      "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.2.1.tgz",
-      "dev": true
+      "version": "3.3.6",
+      "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.6.tgz",
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+      "dev": true,
+      "requires": {
+        "sprintf-js": "^1.1.1",
+        "util-deprecate": "^1.0.2"
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+        }
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@@ -6811,10 +7079,17 @@
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@@ -6977,9 +7252,13 @@
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-      "resolved": "https://registry.npmjs.org/which/-/which-1.0.9.tgz",
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+      "version": "2.0.2",
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@@ -7007,6 +7286,12 @@
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+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
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diff --git a/tools/rls/src/package.json b/tools/rls/src/package.json
index 47a8d43..232fb76 100644
--- a/tools/rls/src/package.json
+++ b/tools/rls/src/package.json
@@ -11,7 +11,7 @@
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     "grunt-contrib-coffee": "^1.0.0",