diff --git a/package-lock.json b/package-lock.json
index 7ae468d..c8ec7e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.3.6",
       "license": "MIT",
       "dependencies": {
-        "tslint": "^5.20.1",
+        "tslint": "^6.1.3",
         "tslint-config-prettier": "^1.18.0",
         "tslint-immutable": "^6.0.1"
       },
@@ -317,14 +317,17 @@
       }
     },
     "node_modules/tslib": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
-      "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "license": "0BSD"
     },
     "node_modules/tslint": {
-      "version": "5.20.1",
-      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.20.1.tgz",
-      "integrity": "sha512-EcMxhzCFt8k+/UP5r8waCf/lzmeSyVlqxqMEDQE7rWYiQky8KpIBz1JAoYXfROHrPZ1XXd43q8yQnULOLiBRQg==",
+      "version": "6.1.3",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-6.1.3.tgz",
+      "integrity": "sha512-IbR4nkT96EQOvKE2PW/djGz8iGNeJ4rF2mBfiYaR/nvUWYKJhLwimoJKgjIFEIDibBtOevj7BqCRL4oHeWWUCg==",
+      "deprecated": "TSLint has been deprecated in favor of ESLint. Please see https://github.com/palantir/tslint/issues/4534 for more information.",
+      "license": "Apache-2.0",
       "dependencies": {
         "@babel/code-frame": "^7.0.0",
         "builtin-modules": "^1.1.1",
@@ -334,10 +337,10 @@
         "glob": "^7.1.1",
         "js-yaml": "^3.13.1",
         "minimatch": "^3.0.4",
-        "mkdirp": "^0.5.1",
+        "mkdirp": "^0.5.3",
         "resolve": "^1.3.2",
         "semver": "^5.3.0",
-        "tslib": "^1.8.0",
+        "tslib": "^1.13.0",
         "tsutils": "^2.29.0"
       },
       "bin": {
@@ -347,7 +350,7 @@
         "node": ">=4.8.0"
       },
       "peerDependencies": {
-        "typescript": ">=2.3.0-dev || >=2.4.0-dev || >=2.5.0-dev || >=2.6.0-dev || >=2.7.0-dev || >=2.8.0-dev || >=2.9.0-dev || >=3.0.0-dev || >= 3.1.0-dev || >= 3.2.0-dev"
+        "typescript": ">=2.3.0-dev || >=2.4.0-dev || >=2.5.0-dev || >=2.6.0-dev || >=2.7.0-dev || >=2.8.0-dev || >=2.9.0-dev || >=3.0.0-dev || >= 3.1.0-dev || >= 3.2.0-dev || >= 4.0.0-dev"
       }
     },
     "node_modules/tslint-config-prettier": {
@@ -633,14 +636,14 @@
       }
     },
     "tslib": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
-      "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
     },
     "tslint": {
-      "version": "5.20.1",
-      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.20.1.tgz",
-      "integrity": "sha512-EcMxhzCFt8k+/UP5r8waCf/lzmeSyVlqxqMEDQE7rWYiQky8KpIBz1JAoYXfROHrPZ1XXd43q8yQnULOLiBRQg==",
+      "version": "6.1.3",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-6.1.3.tgz",
+      "integrity": "sha512-IbR4nkT96EQOvKE2PW/djGz8iGNeJ4rF2mBfiYaR/nvUWYKJhLwimoJKgjIFEIDibBtOevj7BqCRL4oHeWWUCg==",
       "requires": {
         "@babel/code-frame": "^7.0.0",
         "builtin-modules": "^1.1.1",
@@ -650,10 +653,10 @@
         "glob": "^7.1.1",
         "js-yaml": "^3.13.1",
         "minimatch": "^3.0.4",
-        "mkdirp": "^0.5.1",
+        "mkdirp": "^0.5.3",
         "resolve": "^1.3.2",
         "semver": "^5.3.0",
-        "tslib": "^1.8.0",
+        "tslib": "^1.13.0",
         "tsutils": "^2.29.0"
       }
     },
diff --git a/package.json b/package.json
index b6ac384..6be43c3 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   },
   "homepage": "https://github.com/relaycorp/shared-config#readme",
   "dependencies": {
-    "tslint": "^5.20.1",
+    "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
     "tslint-immutable": "^6.0.1"
   },