diff --git a/package-lock.json b/package-lock.json
index 6c674d3..17f782e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,9 +15,9 @@
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         },
         "acorn": {
-            "version": "5.7.3",
-            "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-            "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw=="
+            "version": "5.7.4",
+            "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+            "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg=="
         },
         "almond": {
             "version": "0.3.3",