diff --git a/yarn.lock b/yarn.lock
index c309f93..33813b2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1270,9 +1270,9 @@ ignore@^5.2.0:
   integrity sha512-CmxgYGiEPCLhfLnpPp1MoRmifwEIOgjcHXxOBjv7mY96c+eWScsOP9c112ZyLdWHi0FxHjI+4uVhKYp/gcdRmQ==
 
 immutable@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.npmjs.org/immutable/-/immutable-4.1.0.tgz"
-  integrity sha512-oNkuqVTA8jqG1Q6c+UglTOD1xhC1BtjKI7XkCXRkZHrN5m18/XsnUp8Q89GkQO/z+0WjonSvl0FLhDYftp46nQ==
+  version "4.3.9"
+  resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.3.9.tgz#c98349e05e9c6e2a4d8fe88ac0b363e0d536b544"
+  integrity sha512-ObHy4YN7ycwZOUCLI1/6svfyAFu7vL8RhAvVu/bh/RZW9EPlOyDaQ9jDQWCtdqzaXUjgXZCW1migtHE7YI7UGQ==
 
 import-fresh@^3.0.0, import-fresh@^3.2.1:
   version "3.3.0"