diff --git a/.travis.yml b/.travis.yml
index 75998a5b..754ecc3f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,6 +24,8 @@ before_install:
       /usr/bin/Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
       sleep 3
     fi
+  - nvm install 12
+  - nvm use 12
 
 install:
 - npm install -g vsce
diff --git a/package-lock.json b/package-lock.json
index c942aae0..f60d92dc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,27 +5,27 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.3.tgz",
-      "integrity": "sha512-a9gxpmdXtZEInkCSHUJDLHZVBgb1QS0jhss4cPP93EW7s+uC5bikET2twEF3KV+7rDblJcmNvTR7VJejqd2C2g==",
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.10.4.tgz",
+      "integrity": "sha512-vG6SvB6oYEhvgisZNFRmRCUkLz11c7rp+tbNTynGqc6mS1d5ATd/sGyV6W0KZZnXRKMTzZDRgQT3Ou9jhpAfUg==",
       "dev": true,
       "requires": {
-        "@babel/highlight": "^7.8.3"
+        "@babel/highlight": "^7.10.4"
       }
     },
     "@babel/helper-validator-identifier": {
-      "version": "7.9.5",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.5.tgz",
-      "integrity": "sha512-/8arLKUFq882w4tWGj9JYzRpAlZgiWUJ+dtteNTDqrRBz9Iguck9Rn3ykuBDoUwh2TO4tSAJlrxDUOXWklJe4g==",
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz",
+      "integrity": "sha512-3U9y+43hz7ZM+rzG24Qe2mufW5KhvFg/NhnNph+i9mgCtdTCtMJuI1TMkrIUiK7Ix4PYlRF9I5dhqaLYA/ADXw==",
       "dev": true
     },
     "@babel/highlight": {
-      "version": "7.9.0",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.9.0.tgz",
-      "integrity": "sha512-lJZPilxX7Op3Nv/2cvFdnlepPXDxi29wxteT57Q965oc5R9v86ztx0jfxVrTcBk8C2kcPkkDa2Z4T3ZsPPVWsQ==",
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.10.4.tgz",
+      "integrity": "sha512-i6rgnR/YgPEQzZZnbTHHuZdlE8qyoBNalD6F+q4vAFlcMEcqmkoG+mPqJYJCo63qPf74+Y1UZsl3l6f7/RIkmA==",
       "dev": true,
       "requires": {
-        "@babel/helper-validator-identifier": "^7.9.0",
+        "@babel/helper-validator-identifier": "^7.10.4",
         "chalk": "^2.0.0",
         "js-tokens": "^4.0.0"
       }
@@ -79,9 +79,9 @@
       }
     },
     "@types/lodash": {
-      "version": "4.14.159",
-      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.159.tgz",
-      "integrity": "sha512-gF7A72f7WQN33DpqOWw9geApQPh4M3PxluMtaHxWHXEGSN12/WbcEk/eNSqWNQcQhF66VSZ06vCF94CrHwXJDg==",
+      "version": "4.14.165",
+      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.165.tgz",
+      "integrity": "sha512-tjSSOTHhI5mCHTy/OOXYIhi2Wt1qcbHmuXD1Ha7q70CgI/I71afO4XtLb/cVexki1oVYchpul/TOuu3Arcdxrg==",
       "dev": true
     },
     "@types/minimatch": {
@@ -97,9 +97,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "8.10.62",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.62.tgz",
-      "integrity": "sha512-76fupxOYVxk36kb7O/6KtrAPZ9jnSK3+qisAX4tQMEuGNdlvl7ycwatlHqjoE6jHfVtXFM3pCrCixZOidc5cuw==",
+      "version": "8.10.66",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.66.tgz",
+      "integrity": "sha512-tktOkFUA4kXx2hhhrB8bIFb5TbwzS4uOhKEmwiD+NoiL0qtP2OQ9mFldbgD4dV1djrlBYP6eBuQZiWjuHUpqFw==",
       "dev": true
     },
     "@types/vscode": {
@@ -296,9 +296,9 @@
       "dev": true
     },
     "acorn": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
-      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
+      "version": "6.4.2",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+      "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
       "dev": true
     },
     "agent-base": {
@@ -311,9 +311,9 @@
       }
     },
     "ajv": {
-      "version": "6.12.4",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.4.tgz",
-      "integrity": "sha512-eienB2c9qVQs2KWexhkrdMLVDoIQCz5KSeLxwg9Lzk4DOfBtIK9PQwwufcsn1jjGuf9WZmqPMbGxOzfcuphJCQ==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^3.1.1",
@@ -336,7 +336,7 @@
     },
     "ansi-colors": {
       "version": "1.1.0",
-      "resolved": "http://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
       "integrity": "sha512-SFKX67auSNoVR38N3L+nvsPjOE0bybKTYbkf5tRvushrAPQ9V75huw0ZxBkKVeRU9kqH3d6HA4xTckbwZ4ixmA==",
       "dev": true,
       "requires": {
@@ -401,299 +401,13 @@
         "normalize-path": "^2.1.1"
       },
       "dependencies": {
-        "arr-diff": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
-          "integrity": "sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=",
-          "dev": true
-        },
-        "array-unique": {
-          "version": "0.3.2",
-          "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
-          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
-          "dev": true
-        },
-        "braces": {
-          "version": "2.3.2",
-          "resolved": "https://registry.npmjs.org/braces/-/braces-2.3.2.tgz",
-          "integrity": "sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==",
-          "dev": true,
-          "requires": {
-            "arr-flatten": "^1.1.0",
-            "array-unique": "^0.3.2",
-            "extend-shallow": "^2.0.1",
-            "fill-range": "^4.0.0",
-            "isobject": "^3.0.1",
-            "repeat-element": "^1.1.2",
-            "snapdragon": "^0.8.1",
-            "snapdragon-node": "^2.0.1",
-            "split-string": "^3.0.2",
-            "to-regex": "^3.0.1"
-          },
-          "dependencies": {
-            "extend-shallow": {
-              "version": "2.0.1",
-              "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-              "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-              "dev": true,
-              "requires": {
-                "is-extendable": "^0.1.0"
-              }
-            }
-          }
-        },
-        "expand-brackets": {
-          "version": "2.1.4",
-          "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-2.1.4.tgz",
-          "integrity": "sha1-t3c14xXOMPa27/D4OwQVGiJEliI=",
-          "dev": true,
-          "requires": {
-            "debug": "^2.3.3",
-            "define-property": "^0.2.5",
-            "extend-shallow": "^2.0.1",
-            "posix-character-classes": "^0.1.0",
-            "regex-not": "^1.0.0",
-            "snapdragon": "^0.8.1",
-            "to-regex": "^3.0.1"
-          },
-          "dependencies": {
-            "define-property": {
-              "version": "0.2.5",
-              "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
-              "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
-              "dev": true,
-              "requires": {
-                "is-descriptor": "^0.1.0"
-              }
-            },
-            "extend-shallow": {
-              "version": "2.0.1",
-              "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-              "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-              "dev": true,
-              "requires": {
-                "is-extendable": "^0.1.0"
-              }
-            },
-            "is-accessor-descriptor": {
-              "version": "0.1.6",
-              "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz",
-              "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
-              "dev": true,
-              "requires": {
-                "kind-of": "^3.0.2"
-              },
-              "dependencies": {
-                "kind-of": {
-                  "version": "3.2.2",
-                  "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
-                  "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
-                  "dev": true,
-                  "requires": {
-                    "is-buffer": "^1.1.5"
-                  }
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-            },
-            "is-data-descriptor": {
-              "version": "0.1.4",
-              "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz",
-              "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
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-              "requires": {
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-                  "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
-                  "dev": true,
-                  "requires": {
-                    "is-buffer": "^1.1.5"
-                  }
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-            },
-            "is-descriptor": {
-              "version": "0.1.6",
-              "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-0.1.6.tgz",
-              "integrity": "sha512-avDYr0SB3DwO9zsMov0gKCESFYqCnE4hq/4z3TdUlukEy5t9C0YRq7HLrsN52NAcqXKaepeCD0n+B0arnVG3Hg==",
-              "dev": true,
-              "requires": {
-                "is-accessor-descriptor": "^0.1.6",
-                "is-data-descriptor": "^0.1.4",
-                "kind-of": "^5.0.0"
-              }
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-            "kind-of": {
-              "version": "5.1.0",
-              "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-5.1.0.tgz",
-              "integrity": "sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==",
-              "dev": true
-            }
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-          "version": "3.0.2",
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-          "integrity": "sha1-Jqcarwc7OfshJxcnRhMcJwQCjbg=",
-          "dev": true,
-          "requires": {
-            "assign-symbols": "^1.0.0",
-            "is-extendable": "^1.0.1"
-          },
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-              "version": "1.0.1",
-              "resolved": "https://registry.npmjs.org/is-extendable/-/is-extendable-1.0.1.tgz",
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-            "fragment-cache": "^0.2.1",
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-            "snapdragon": "^0.8.1",
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-            "is-number": "^3.0.0",
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-          "requires": {
-            "is-accessor-descriptor": "^1.0.0",
-            "is-data-descriptor": "^1.0.0",
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-        "is-number": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/is-number/-/is-number-3.0.0.tgz",
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-          "requires": {
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-            "kind-of": {
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-              "dev": true,
-              "requires": {
-                "is-buffer": "^1.1.5"
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-        },
-        "isobject": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
-          "dev": true
-        },
-        "kind-of": {
-          "version": "6.0.3",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
-          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
-          "dev": true
-        },
-        "micromatch": {
-          "version": "3.1.10",
-          "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-3.1.10.tgz",
-          "integrity": "sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==",
+        "normalize-path": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
+          "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
           "dev": true,
           "requires": {
-            "arr-diff": "^4.0.0",
-            "array-unique": "^0.3.2",
-            "braces": "^2.3.1",
-            "define-property": "^2.0.2",
-            "extend-shallow": "^3.0.2",
-            "extglob": "^2.0.4",
-            "fragment-cache": "^0.2.1",
-            "kind-of": "^6.0.2",
-            "nanomatch": "^1.2.9",
-            "object.pick": "^1.3.0",
-            "regex-not": "^1.0.0",
-            "snapdragon": "^0.8.1",
-            "to-regex": "^3.0.2"
+            "remove-trailing-separator": "^1.0.1"
           }
         }
       }
@@ -770,9 +484,9 @@
       }
     },
     "arr-union": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-2.1.0.tgz",
-      "integrity": "sha1-IPnqtexw9cfSFbEHexw5Fh0pLH0=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
       "dev": true
     },
     "array-each": {
@@ -817,9 +531,9 @@
       }
     },
     "array-slice": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.0.0.tgz",
-      "integrity": "sha1-5zA08A3MH0CHYAj9IP6ud71LfC8=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.1.0.tgz",
+      "integrity": "sha512-B1qMD3RBP7O8o0H2KbrXDyB0IccejMF15+87Lvlor12ONPRHP6gTjXMNkt/d3ZuOGbAe66hFmaCfECI24Ufp6w==",
       "dev": true
     },
     "array-sort": {
@@ -890,7 +604,7 @@
         },
         "util": {
           "version": "0.10.3",
-          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
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@@ -9450,9 +6268,9 @@
       "dev": true
     },
     "yargs": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
-      "integrity": "sha1-a6MY6xaWFyf10oT46gA+jWFU0Mg=",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.1.tgz",
+      "integrity": "sha512-huO4Fr1f9PmiJJdll5kwoS2e4GqzGSsMT3PPMpOwoVkOK8ckqAewMTZyA6LXVQWflleb/Z8oPBEvNsMft0XE+g==",
       "dev": true,
       "requires": {
         "camelcase": "^3.0.0",
@@ -9467,16 +6285,17 @@
         "string-width": "^1.0.2",
         "which-module": "^1.0.0",
         "y18n": "^3.2.1",
-        "yargs-parser": "^5.0.0"
+        "yargs-parser": "5.0.0-security.0"
       }
     },
     "yargs-parser": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0.tgz",
-      "integrity": "sha1-J17PDX/+Bcd+ZOfIbkzZS/DhIoo=",
+      "version": "5.0.0-security.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0-security.0.tgz",
+      "integrity": "sha512-T69y4Ps64LNesYxeYGYPvfoMTt/7y1XtfpIslUeK4um+9Hu7hlGoRtaDLvdXb7+/tfq4opVa2HRY5xGip022rQ==",
       "dev": true,
       "requires": {
-        "camelcase": "^3.0.0"
+        "camelcase": "^3.0.0",
+        "object.assign": "^4.1.0"
       }
     },
     "yargs-unparser": {
diff --git a/package.json b/package.json
index f61b06b1..23207745 100644
--- a/package.json
+++ b/package.json
@@ -531,10 +531,10 @@
   "devDependencies": {
     "@types/fs-extra": "^5.1.0",
     "@types/glob": "^7.1.3",
-    "@types/lodash": "^4.14.159",
+    "@types/lodash": "^4.14.165",
     "@types/minimatch": "^3.0.3",
     "@types/mocha": "^5.2.7",
-    "@types/node": "^8.10.62",
+    "@types/node": "^8.10.66",
     "@types/vscode": "1.50.0",
     "glob": "^7.1.6",
     "gulp": "^4.0.2",
@@ -544,8 +544,8 @@
     "ts-loader": "^5.4.5",
     "tslint": "^5.20.1",
     "typescript": "^3.9.7",
-    "vscode-test": "^1.4.0",
-    "webpack": "^4.44.1",
+    "vscode-test": "^1.4.1",
+    "webpack": "^4.44.2",
     "webpack-cli": "^3.3.12"
   },
   "dependencies": {
diff --git a/src/views/dependencyDataProvider.ts b/src/views/dependencyDataProvider.ts
index 2b793b27..f649fc3a 100644
--- a/src/views/dependencyDataProvider.ts
+++ b/src/views/dependencyDataProvider.ts
@@ -31,7 +31,7 @@ export class DependencyDataProvider implements TreeDataProvider<ExplorerNode> {
     public onDidChangeTreeData: Event<ExplorerNode | null | undefined> = this._onDidChangeTreeData.event;
 
     private _rootItems: ExplorerNode[] = null;
-    private _refreshDelayTrigger: ((element?: ExplorerNode) => void) & _.Cancelable;
+    private _refreshDelayTrigger: _.DebouncedFunc<((element?: ExplorerNode) => void)>;
 
     constructor(public readonly context: ExtensionContext) {
         context.subscriptions.push(commands.registerCommand(Commands.VIEW_PACKAGE_REFRESH, (debounce?: boolean, element?: ExplorerNode) =>