diff --git a/jsstrings/package-lock.json b/jsstrings/package-lock.json
index 0648f52..d0a5624 100644
--- a/jsstrings/package-lock.json
+++ b/jsstrings/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "acorn": {
-      "version": "5.7.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
-      "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ=="
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg=="
     }
   }
 }
diff --git a/jsstrings/package.json b/jsstrings/package.json
index 781359e..242f8dc 100644
--- a/jsstrings/package.json
+++ b/jsstrings/package.json
@@ -9,6 +9,6 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "acorn": "^5.7.1"
+    "acorn": "^5.7.4"
   }
 }