diff --git a/agentscript/yarn.lock b/agentscript/yarn.lock
old mode 100755
new mode 100644
index 2be080a..395ccdc
--- a/agentscript/yarn.lock
+++ b/agentscript/yarn.lock
@@ -348,8 +348,9 @@ accepts@~1.3.4:
     negotiator "0.6.2"
 
 acorn@^6.1.1:
-  version "6.1.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.1.1.tgz#7d25ae05bb8ad1f9b699108e1094ecd7884adc1f"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
+  integrity sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==
 
 agent-base@^4.1.0:
   version "4.2.1"