diff --git a/package.json b/package.json
index e307df2..dd5a165 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "lib/**/*.d.ts"
   ],
   "dependencies": {
-    "@salesforce/ts-types": "^1.7.0",
+    "@salesforce/ts-types": "^1.7.1",
     "sinon": "^5.1.1",
     "tslib": "^2.2.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 792cf0c..a98a3d9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -640,12 +640,12 @@
   resolved "https://registry.npmjs.org/@salesforce/prettier-config/-/prettier-config-0.0.2.tgz#ded39bf7cb75238edc9db6dd093649111350f8bc"
   integrity sha512-KExM355BLbxCW6siGBV7oUOotXvvVp0tAWERgzUkM2FcMb9fWrjwXDrIHc8V0UdDlA3UXtFltDWgN+Yqi+BA/g==
 
-"@salesforce/ts-types@^1.7.0":
-  version "1.7.0"
-  resolved "https://registry.npmjs.org/@salesforce/ts-types/-/ts-types-1.7.0.tgz#0ec743b324a0d39b13ac681132042742e9a43d0f"
-  integrity sha512-8bLGBZCk7T/tkfXP66r5Pkhn3CjfNQIOy6B0Z1rvam5RgqWtYYcubF7eSLSj7bop/q7tA8+R6bNJmjATX6hTqA==
+"@salesforce/ts-types@^1.7.1":
+  version "1.7.1"
+  resolved "https://registry.npmjs.org/@salesforce/ts-types/-/ts-types-1.7.1.tgz#86b0d0c3bfd5c9b1752662a019a3d2f3bc8ff118"
+  integrity sha512-jwZb8fYxbOmEckoJTxG2+5ZEJNJOFxmRJ/FioPnSu4IMFzpK3QbyujfqpHwLfPKHq0xlKRMx+F8QAVVKI/PA4w==
   dependencies:
-    tslib "^2.2.0"
+    tslib "^2.4.1"
 
 "@sinonjs/commons@^1", "@sinonjs/commons@^1.3.0", "@sinonjs/commons@^1.6.0", "@sinonjs/commons@^1.7.0", "@sinonjs/commons@^1.8.1":
   version "1.8.3"
@@ -4231,10 +4231,10 @@ tslib@^1.8.1, tslib@^1.9.3:
   resolved "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2.0.0, tslib@^2.0.3, tslib@^2.2.0:
-  version "2.4.0"
-  resolved "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
-  integrity sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==
+tslib@^2.0.0, tslib@^2.0.3, tslib@^2.2.0, tslib@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.npmjs.org/tslib/-/tslib-2.4.1.tgz#0d0bfbaac2880b91e22df0768e55be9753a5b17e"
+  integrity sha512-tGyy4dAjRIEwI7BzsB0lynWgOpfqjUdq91XXAlIWD2OwKBH7oCl/GZG/HT4BOHrTlPMOASlMQ7veyTqpmRcrNA==
 
 tsutils@^3.21.0:
   version "3.21.0"