diff --git a/protein_schematic/url_builder/yarn.lock b/protein_schematic/url_builder/yarn.lock
index c0f23c7b..97e82f6d 100644
--- a/protein_schematic/url_builder/yarn.lock
+++ b/protein_schematic/url_builder/yarn.lock
@@ -985,9 +985,9 @@ duplexify@^3.4.2, duplexify@^3.6.0:
     stream-shift "^1.0.0"
 
 elliptic@^6.5.3:
-  version "6.5.4"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
-  integrity sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==
+  version "6.6.0"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.6.0.tgz#5919ec723286c1edf28685aa89261d4761afa210"
+  integrity sha512-dpwoQcLc/2WLQvJvLRHKZ+f9FgOdjnq11rurqwekGQygGPsYSK29OMMD2WalatiqQ+XGFDglTNixpPfI+lpaAA==
   dependencies:
     bn.js "^4.11.9"
     brorand "^1.1.0"