diff --git a/example/yarn.lock b/example/yarn.lock
index c983433..a17a829 100644
--- a/example/yarn.lock
+++ b/example/yarn.lock
@@ -366,7 +366,7 @@ async@^1.5.2:
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
-async@^2.1.2, async@^2.1.4, async@^2.4.1, async@^2.5.0:
+async@^2.1.2, async@^2.1.4, async@^2.4.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
   integrity sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==
@@ -3600,13 +3600,14 @@ handle-thing@^1.2.5:
   integrity sha1-/Xqtcmvxpf0W38KbL3pmAdJxOcQ=
 
 handlebars@^4.0.3:
-  version "4.0.12"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.12.tgz#2c15c8a96d46da5e266700518ba8cb8d919d5bc5"
-  integrity sha512-RhmTekP+FZL+XNhwS1Wf+bTTZpdLougwt5pcgA1tuz6Jcx0fpH/7z0qd71RKnZHBCxIRBHfBOnio4gViPemNzA==
+  version "4.7.8"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.8.tgz#41c42c18b1be2365439188c77c6afae71c0cd9e9"
+  integrity sha512-vafaFqs8MZkRrSX7sFVUdo3ap/eNiLnb4IakshzvP56X5Nr1iGKAIqdX6tMlm6HcNRIkr6AxO5jFEoJzzpT8aQ==
   dependencies:
-    async "^2.5.0"
-    optimist "^0.6.1"
+    minimist "^1.2.5"
+    neo-async "^2.6.2"
     source-map "^0.6.1"
+    wordwrap "^1.0.0"
   optionalDependencies:
     uglify-js "^3.1.4"
 
@@ -5355,10 +5356,10 @@ minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2.0:
   resolved "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
-minimist@~0.0.1:
-  version "0.0.10"
-  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
-  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
+minimist@^1.2.5:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.8.tgz#c1a464e7693302e082a075cee0c057741ac4772c"
+  integrity sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==
 
 minipass@^2.2.1, minipass@^2.3.3:
   version "2.3.4"
@@ -5464,6 +5465,11 @@ neo-async@^2.5.0:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.2.tgz#489105ce7bc54e709d736b195f82135048c50fcc"
   integrity sha512-vdqTKI9GBIYcAEbFAcpKPErKINfPF5zIuz3/niBfq8WUZjpT2tytLlFVrBgWdOtqI4uaA/Rb6No0hux39XXDuw==
 
+neo-async@^2.6.2:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.2.tgz#b4aafb93e3aeb2d8174ca53cf163ab7d7308305f"
+  integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
+
 next-tick@1:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
@@ -5742,14 +5748,6 @@ opn@^5.1.0:
   dependencies:
     is-wsl "^1.1.0"
 
-optimist@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
-  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
-  dependencies:
-    minimist "~0.0.1"
-    wordwrap "~0.0.2"
-
 optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
@@ -8446,12 +8444,7 @@ wordwrap@0.0.2:
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
   integrity sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=
 
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
-
-wordwrap@~1.0.0:
+wordwrap@^1.0.0, wordwrap@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
   integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=