diff --git a/package-lock.json b/package-lock.json
index 1479c1e..3eaf31a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2574,7 +2574,7 @@
     },
     "duplexer": {
       "version": "0.1.1",
-      "resolved": "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
+      "resolved": "http://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
       "integrity": "sha1-rOb/gIwc5mtX0ev5eXessCM0z8E=",
       "dev": true
     },
@@ -2807,18 +2807,18 @@
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     },
     "event-stream": {
-      "version": "3.3.5",
-      "resolved": "https://registry.npmjs.org/event-stream/-/event-stream-3.3.5.tgz",
-      "integrity": "sha512-vyibDcu5JL20Me1fP734QBH/kenBGLZap2n0+XXM7mvuUPzJ20Ydqj1aKcIeMdri1p+PU+4yAKugjN8KCVst+g==",
+      "version": "3.3.4",
+      "resolved": "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz",
+      "integrity": "sha1-SrTJoPWlTbkzi0w02Gv86PSzVXE=",
       "dev": true,
       "requires": {
-        "duplexer": "^0.1.1",
-        "from": "^0.1.7",
-        "map-stream": "0.0.7",
-        "pause-stream": "^0.0.11",
-        "split": "^1.0.1",
-        "stream-combiner": "^0.2.2",
-        "through": "^2.3.8"
+        "duplexer": "~0.1.1",
+        "from": "~0",
+        "map-stream": "~0.1.0",
+        "pause-stream": "0.0.11",
+        "split": "0.3",
+        "stream-combiner": "~0.0.4",
+        "through": "~2.3.1"
       }
     },
     "events": {
@@ -3177,7 +3177,7 @@
     },
     "finalhandler": {
       "version": "1.1.1",
-      "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
       "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
       "requires": {
         "debug": "2.6.9",
@@ -6104,9 +6104,9 @@
       "integrity": "sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8="
     },
     "map-stream": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/map-stream/-/map-stream-0.0.7.tgz",
-      "integrity": "sha1-ih8HiW2CsQkmvTdEokIACfiJdKg=",
+      "version": "0.1.0",
+      "resolved": "http://registry.npmjs.org/map-stream/-/map-stream-0.1.0.tgz",
+      "integrity": "sha1-5WqpTEyAVaFkBKBnS3jyFffI4ZQ=",
       "dev": true
     },
     "map-visit": {
@@ -13445,7 +13445,7 @@
     },
     "pause-stream": {
       "version": "0.0.11",
-      "resolved": "https://registry.npmjs.org/pause-stream/-/pause-stream-0.0.11.tgz",
+      "resolved": "http://registry.npmjs.org/pause-stream/-/pause-stream-0.0.11.tgz",
       "integrity": "sha1-/lo0sMvOErWqaitAPuLnO2AvFEU=",
       "dev": true,
       "requires": {
@@ -14433,9 +14433,9 @@
       "integrity": "sha512-2+EPwgbnmOIl8HjGBXXMd9NAu02vLjOO1nWw4kmeRDFyHn+M/ETfHxQUK0oXg8ctgVnl9t3rosNVsZ1jG61nDA=="
     },
     "split": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/split/-/split-1.0.1.tgz",
-      "integrity": "sha512-mTyOoPbrivtXnwnIxZRFYRrPNtEFKlpB2fvjSnCQUiAA6qAZzqwna5envK4uk6OIeP17CsdF3rSBGYVBsU0Tkg==",
+      "version": "0.3.3",
+      "resolved": "http://registry.npmjs.org/split/-/split-0.3.3.tgz",
+      "integrity": "sha1-zQ7qXmOiEd//frDwkcQTPi0N0o8=",
       "dev": true,
       "requires": {
         "through": "2"
@@ -14533,13 +14533,12 @@
       }
     },
     "stream-combiner": {
-      "version": "0.2.2",
-      "resolved": "http://registry.npmjs.org/stream-combiner/-/stream-combiner-0.2.2.tgz",
-      "integrity": "sha1-rsjLrBd7Vrb0+kec7YwZEs7lKFg=",
+      "version": "0.0.4",
+      "resolved": "http://registry.npmjs.org/stream-combiner/-/stream-combiner-0.0.4.tgz",
+      "integrity": "sha1-TV5DPBhSYd3mI8o/RMWGvPXErRQ=",
       "dev": true,
       "requires": {
-        "duplexer": "~0.1.1",
-        "through": "~2.3.4"
+        "duplexer": "~0.1.1"
       }
     },
     "stream-combiner2": {
diff --git a/package.json b/package.json
index a39d569..2b942e0 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "browserify": "^16.2.3",
     "chai": "^4.2.0",
     "chai-http": "^4.2.0",
-    "event-stream": "^3.3.5",
+    "event-stream": "^3.3.4",
     "glob": "^7.1.3",
     "graceful-fs": "^4.1.15",
     "gulp": "^4.0.0",