diff --git a/package-lock.json b/package-lock.json
index cfccd86..dc84351 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -268,12 +268,45 @@
       "dev": true
     },
     "bl": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.1.tgz",
-      "integrity": "sha1-ysMo977kVzDUBLaSID/LWQ4XLV4=",
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.3.tgz",
+      "integrity": "sha512-pvcNpa0UU69UT341rO6AYy4FVAIkUHuZXRIWbq+zHnsVcRzDDjIAhGuuYoi0d//cwIwtt4pkpKycWEfjdV+vww==",
       "dev": true,
       "requires": {
-        "readable-stream": "^2.0.5"
+        "readable-stream": "^2.3.5",
+        "safe-buffer": "^5.1.1"
+      },
+      "dependencies": {
+        "process-nextick-args": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+          "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
+          "dev": true
+        },
+        "readable-stream": {
+          "version": "2.3.7",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+          "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+          "dev": true,
+          "requires": {
+            "core-util-is": "~1.0.0",
+            "inherits": "~2.0.3",
+            "isarray": "~1.0.0",
+            "process-nextick-args": "~2.0.0",
+            "safe-buffer": "~5.1.1",
+            "string_decoder": "~1.1.1",
+            "util-deprecate": "~1.0.1"
+          }
+        },
+        "string_decoder": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+          "dev": true,
+          "requires": {
+            "safe-buffer": "~5.1.0"
+          }
+        }
       }
     },
     "bluebird": {