diff --git a/package.json b/package.json
index c9cc4ae..388f360 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "object-assign": "^4.1.0",
-    "string-width": "^3.0.0"
+    "string-width": "^4.2.0"
   },
   "devDependencies": {
     "ansi-256-colors": "^1.1.0",
diff --git a/yarn.lock b/yarn.lock
index 9abf15a..fa51ec5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4324,14 +4324,7 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
-strip-ansi@^5.0.0, strip-ansi@^5.1.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.1.0.tgz#55aaa54e33b4c0649a7338a43437b1887d153ec4"
-  integrity sha512-TjxrkPONqO2Z8QDCpeE2j6n0M6EwxzyDgzEeGp+FbdvaJAt//ClYi6W5my+3ROlC/hZX2KACUwDfK49Ka5eDvg==
-  dependencies:
-    ansi-regex "^4.1.0"
-
-strip-ansi@^5.2.0:
+strip-ansi@^5.0.0, strip-ansi@^5.1.0, strip-ansi@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
   integrity sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==