diff --git a/packages/opencensus-propagation-stackdriver/package-lock.json b/packages/opencensus-propagation-stackdriver/package-lock.json
index 0b8cf058a..a55174d70 100644
--- a/packages/opencensus-propagation-stackdriver/package-lock.json
+++ b/packages/opencensus-propagation-stackdriver/package-lock.json
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+          "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        }
       }
     },
     "run-async": {
@@ -2580,11 +2623,11 @@
       }
     },
     "rxjs": {
-      "version": "5.5.10",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-5.5.10.tgz",
-      "integrity": "sha512-SRjimIDUHJkon+2hFo7xnvNC4ZEHGzCRwh9P7nzX3zPkCGFEg/tuElrNR7L/rZMagnK2JeH2jQwPRpmyXyLB6A==",
+      "version": "6.3.3",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.3.3.tgz",
+      "integrity": "sha512-JTWmoY9tWCs7zvIk/CvRjhjGaOd+OVBM987mxFo+OW66cGpdKjZcpmc74ES1sB//7Kl/PAe8+wEakuhG4pcgOw==",
       "requires": {
-        "symbol-observable": "1.0.1"
+        "tslib": "^1.9.0"
       }
     },
     "safe-buffer": {
@@ -2634,18 +2677,18 @@
       "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w="
     },
     "spdx-correct": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.0.0.tgz",
-      "integrity": "sha512-N19o9z5cEyc8yQQPukRCZ9EUmb4HUpnrmaL/fxS2pBo2jbfcFRVuFZ/oFC+vZz0MNNk0h80iMn5/S6qGZOL5+g==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
+      "integrity": "sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==",
       "requires": {
         "spdx-expression-parse": "^3.0.0",
         "spdx-license-ids": "^3.0.0"
       }
     },
     "spdx-exceptions": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.1.0.tgz",
-      "integrity": "sha512-4K1NsmrlCU1JJgUrtgEeTVyfx8VaYea9J9LvARxhbHtVtohPs/gFGG5yy49beySjlIMhhXZ4QqujIZEfS4l6Cg=="
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
+      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA=="
     },
     "spdx-expression-parse": {
       "version": "3.0.0",
@@ -2657,9 +2700,9 @@
       }
     },
     "spdx-license-ids": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.0.tgz",
-      "integrity": "sha512-2+EPwgbnmOIl8HjGBXXMd9NAu02vLjOO1nWw4kmeRDFyHn+M/ETfHxQUK0oXg8ctgVnl9t3rosNVsZ1jG61nDA=="
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.3.tgz",
+      "integrity": "sha512-uBIcIl3Ih6Phe3XHK1NqboJLdGfwr1UN3k6wSD1dZpmPsIkb8AGNbZYJ1fOBk834+Gxy8rpfDxrS6XLEMZMY2g=="
     },
     "sprintf-js": {
       "version": "1.0.3",
@@ -2689,14 +2732,31 @@
       "requires": {
         "is-fullwidth-code-point": "^2.0.0",
         "strip-ansi": "^4.0.0"
+      },
+      "dependencies": {
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
       }
     },
     "strip-ansi": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
-      "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.0.0.tgz",
+      "integrity": "sha512-Uu7gQyZI7J7gn5qLn1Np3G9vcYGTVqB+lFTytnDJv83dd8T22aGH451P3jueT2/QemInJDfxHB5Tde5OzgG1Ow==",
       "requires": {
-        "ansi-regex": "^3.0.0"
+        "ansi-regex": "^4.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.0.0.tgz",
+          "integrity": "sha512-iB5Dda8t/UqpPI/IjsejXu5jOGDrzn41wJyljwPH65VCIbk6+1BzFIMJGFwTNrYXT1CrD+B4l19U7awiQ8rk7w=="
+        }
       }
     },
     "strip-bom": {
@@ -2727,11 +2787,6 @@
         "has-flag": "^3.0.0"
       }
     },
-    "symbol-observable": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.0.1.tgz",
-      "integrity": "sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ="
-    },
     "term-size": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/term-size/-/term-size-1.2.0.tgz",
@@ -2790,14 +2845,14 @@
       "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM="
     },
     "tslib": {
-      "version": "1.9.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.0.tgz",
-      "integrity": "sha512-f/qGG2tUkrISBlQZEjEqoZ3B2+npJjIf04H1wuAv9iA8i04Icp+61KRXxFdha22670NJopsZCIjhC3SnjPRKrQ=="
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+      "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
     },
     "tslint": {
-      "version": "5.10.0",
-      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.10.0.tgz",
-      "integrity": "sha1-EeJrzLiK+gLdDZlWyuPUVAtfVMM=",
+      "version": "5.12.0",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.12.0.tgz",
+      "integrity": "sha512-CKEcH1MHUBhoV43SA/Jmy1l24HJJgI0eyLbBNSRyFlsQvb9v6Zdq+Nz2vEOH00nC5SUx4SneJ59PZUS/ARcokQ==",
       "requires": {
         "babel-code-frame": "^6.22.0",
         "builtin-modules": "^1.1.1",
@@ -2810,13 +2865,13 @@
         "resolve": "^1.3.2",
         "semver": "^5.3.0",
         "tslib": "^1.8.0",
-        "tsutils": "^2.12.1"
+        "tsutils": "^2.27.2"
       }
     },
     "tsutils": {
-      "version": "2.26.2",
-      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.26.2.tgz",
-      "integrity": "sha512-uzwnhmrSbyinPCiwfzGsOY3IulBTwoky7r83HmZdz9QNCjhSCzavkh47KLWuU0zF2F2WbpmmzoJUIEiYyd+jEQ==",
+      "version": "2.29.0",
+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.29.0.tgz",
+      "integrity": "sha512-g5JVHCIJwzfISaXpXE1qvNalca5Jwob6FjI4AoPlqMusJ6ftFE7IkkFoMhVLRgK+4Kx3gkzb8UZK5t5yTTvEmA==",
       "requires": {
         "tslib": "^1.8.1"
       }
@@ -2896,9 +2951,9 @@
       "integrity": "sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA=="
     },
     "validate-npm-package-license": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz",
-      "integrity": "sha512-63ZOUnL4SIXj4L0NixR3L1lcjO38crAbgrTpl28t8jjrfuiOBL5Iygm+60qPs/KsZGzPNg6Smnc/oY16QTjF0g==",
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
       "requires": {
         "spdx-correct": "^3.0.0",
         "spdx-expression-parse": "^3.0.0"
@@ -2915,17 +2970,17 @@
       }
     },
     "which": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
-      "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "requires": {
         "isexe": "^2.0.0"
       }
     },
     "widest-line": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.0.tgz",
-      "integrity": "sha1-AUKk6KJD+IgsAjOqDgKBqnYVInM=",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.1.tgz",
+      "integrity": "sha512-Ba5m9/Fa4Xt9eb2ELXt77JxVDV8w7qQrH0zS/TWSJdLyAwQjWoOzpzj5lwVftDz6n/EOu3tNACS84v509qwnJA==",
       "requires": {
         "string-width": "^2.1.1"
       }
@@ -2956,9 +3011,9 @@
       "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
     },
     "yargs-parser": {
-      "version": "10.0.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.0.0.tgz",
-      "integrity": "sha512-+DHejWujTVYeMHLff8U96rLc4uE4Emncoftvn5AjhB1Jw1pWxLzgBUT/WYbPrHmy6YPEBTZQx5myHhVcuuu64g==",
+      "version": "10.1.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+      "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
       "requires": {
         "camelcase": "^4.1.0"
       }
diff --git a/packages/opencensus-propagation-stackdriver/package.json b/packages/opencensus-propagation-stackdriver/package.json
index dcb899e8f..03f8bac40 100644
--- a/packages/opencensus-propagation-stackdriver/package.json
+++ b/packages/opencensus-propagation-stackdriver/package.json
@@ -32,7 +32,7 @@
     "@types/node": "^10.12.12",
     "@types/uuid": "^3.4.3",
     "codecov": "^3.1.0",
-    "gts": "^0.6.0",
+    "gts": "^0.9.0",
     "mocha": "^5.1.1",
     "nyc": "^13.0.0",
     "typescript": "~2.9.0"
diff --git a/packages/opencensus-propagation-stackdriver/src/v1.ts b/packages/opencensus-propagation-stackdriver/src/v1.ts
index 92fc1a53b..1c7292f06 100644
--- a/packages/opencensus-propagation-stackdriver/src/v1.ts
+++ b/packages/opencensus-propagation-stackdriver/src/v1.ts
@@ -20,9 +20,9 @@
  * Full details at https://cloud.google.com/trace/docs/support.
  */
 
-import crypto from 'crypto';
+import * as crypto from 'crypto';
 import {decToHex, hexToDec} from 'hex2dec';
-import uuid from 'uuid';
+import * as uuid from 'uuid';
 
 import {HeaderGetter, HeaderSetter, SpanContext} from './index';