diff --git a/package.json b/package.json
index 2baa86d..c16a39d 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "lib/**/*.d.ts"
   ],
   "dependencies": {
-    "@salesforce/ts-types": "^2.0.2",
+    "@salesforce/ts-types": "^2.0.4",
     "sinon": "^5.1.1",
     "tslib": "^2.6.0"
   },
diff --git a/yarn.lock b/yarn.lock
index e442e3b..b6e1ec9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -538,12 +538,12 @@
   resolved "https://registry.npmjs.org/@salesforce/prettier-config/-/prettier-config-0.0.3.tgz#ba648d4886bb38adabe073dbea0b3a91b3753bb0"
   integrity sha512-hYOhoPTCSYMDYn+U1rlEk16PoBeAJPkrdg4/UtAzupM1mRRJOwEPMG1d7U8DxJFKuXW3DMEYWr2MwAIBDaHmFg==
 
-"@salesforce/ts-types@^2.0.2":
-  version "2.0.3"
-  resolved "https://registry.npmjs.org/@salesforce/ts-types/-/ts-types-2.0.3.tgz#ae944fce71e3fc4c154592f3ee56496d2b6c9d5e"
-  integrity sha512-PWxNB1GhlX045GN6TQ8HRvJudVpm3SE/v3520itBSCXSM+iBSQ09YIxT6EO2XXGwofQBXlQqN5hsXVI5+uFazg==
+"@salesforce/ts-types@^2.0.4":
+  version "2.0.4"
+  resolved "https://registry.npmjs.org/@salesforce/ts-types/-/ts-types-2.0.4.tgz#3508082ca86edd8880123204f60c0914370533d2"
+  integrity sha512-rdpqka+oEhSU0t672LSo2VWiEw/LX4YoGaeciiTZidwmTkGxSCN/JPz+AQdnRagj32sKeVaaeC5JhOYs7uBzNg==
   dependencies:
-    tslib "^2.5.3"
+    tslib "^2.6.0"
 
 "@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"
@@ -3685,7 +3685,7 @@ tslib@^1.8.1:
   resolved "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2.5.3, tslib@^2.6.0:
+tslib@^2.6.0:
   version "2.6.0"
   resolved "https://registry.npmjs.org/tslib/-/tslib-2.6.0.tgz#b295854684dbda164e181d259a22cd779dcd7bc3"
   integrity sha512-7At1WUettjcSRHXCyYtTselblcHl9PJFFVKiCAy/bY97+BPZXSQ2wbq0P9s8tK2G7dFQfNnlJnPAiArVBVBsfA==