diff --git a/package-lock.json b/package-lock.json
index 95a2ca6..b903216 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -120,6 +120,7 @@
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
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-      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
-      "dev": true
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+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
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-      "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
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+      "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.0.3.tgz",
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-      "optional": true,
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-        "combined-stream": "1.0.6",
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@@ -1226,6 +1246,12 @@
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-      "integrity": "sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=",
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-        "har-schema": "2.0.0"
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-      "integrity": "sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=",
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-      "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
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-      "integrity": "sha1-xvxhZIo9nE52T9P8306hBeSSupg=",
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+        "asn1": "~0.2.3",
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@@ -2530,12 +2605,21 @@
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-      "version": "2.3.4",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
-      "integrity": "sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==",
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
+      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
       "dev": true,
       "requires": {
-        "punycode": "1.4.1"
+        "psl": "^1.1.24",
+        "punycode": "^1.4.1"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
+          "dev": true
+        }
       }
     },
     "tunnel-agent": {
@@ -2544,15 +2628,14 @@
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "dev": true,
       "requires": {
-        "safe-buffer": "5.1.1"
+        "safe-buffer": "^5.0.1"
       }
     },
     "tweetnacl": {
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "type-check": {
       "version": "0.3.2",
@@ -2603,6 +2686,15 @@
       "integrity": "sha1-sxxa6CVIRKOoKBVBzisEuGWnNP8=",
       "dev": true
     },
+    "uri-js": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
+      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
+      "dev": true,
+      "requires": {
+        "punycode": "^2.1.0"
+      }
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -2631,9 +2723,9 @@
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0",
+        "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
+        "extsprintf": "^1.2.0"
       }
     },
     "which": {
diff --git a/package.json b/package.json
index cce241b..095106a 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@rduk/errors": "1.x",
     "@rduk/logger": "1.x",
     "@rduk/provider": "3.x",
-    "coveralls": "3.0.1",
+    "coveralls": "3.0.3",
     "istanbul": "0.4.5",
     "jasmine": "3.1.0",
     "standard": "11.0.1",