diff --git a/examples/javascript-datastructures-algorithms/yarn.lock b/examples/javascript-datastructures-algorithms/yarn.lock
index 33078b7..35e0f5b 100644
--- a/examples/javascript-datastructures-algorithms/yarn.lock
+++ b/examples/javascript-datastructures-algorithms/yarn.lock
@@ -526,7 +526,7 @@ cache-base@^1.0.1:
 
 camelcase@^5.0.0:
   version "5.3.1"
-  resolved "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
 
 chalk@2.4.2, chalk@^2.0.0:
   version "2.4.2"
@@ -749,7 +749,7 @@ debug@^4.1.0:
 
 decamelize@^1.2.0:
   version "1.2.0"
-  resolved "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
 decode-uri-component@^0.2.0:
   version "0.2.0"
@@ -2680,8 +2680,8 @@ yallist@^3.0.0, yallist@^3.0.2, yallist@^3.0.3:
   resolved "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
 
 yargs-parser@^13.1.0:
-  version "13.1.1"
-  resolved "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"
+  version "13.1.2"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"
   dependencies:
     camelcase "^5.0.0"
     decamelize "^1.2.0"