diff --git a/HISTORY.md b/HISTORY.md
index 0fbfaf3..d4a3d08 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,8 @@
 ## Release History
 
+### 2017-09-06 *v4.2.0*
+Fixes: Skip inlining of srcs that are already data uris
+
 ### 2017-09-06 *v4.1.1*
 Fixes: buffer.toString() encoding fix for nodejs 8
 
diff --git a/package-lock.json b/package-lock.json
index 9141af1..2d86049 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "web-resource-inliner",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -179,16 +179,7 @@
       "requires": {
         "center-align": "0.1.3",
         "right-align": "0.1.3",
-        "wordwrap": "0.0.2"
-      },
-      "dependencies": {
-        "wordwrap": {
-          "version": "0.0.2",
-          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-          "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
-          "dev": true,
-          "optional": true
-        }
+        "wordwrap": "1.0.0"
       }
     },
     "co": {
@@ -298,15 +289,8 @@
       "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-0.1.0.tgz",
       "integrity": "sha1-BzxpdUbOB4DOI75KKOKT5AvDDII=",
       "requires": {
-        "domelementtype": "1.1.3",
+        "domelementtype": "1.3.0",
         "entities": "1.1.1"
-      },
-      "dependencies": {
-        "domelementtype": {
-          "version": "1.1.3",
-          "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
-          "integrity": "sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs="
-        }
       }
     },
     "domelementtype": {
@@ -982,15 +966,7 @@
       "dev": true,
       "requires": {
         "minimist": "0.0.10",
-        "wordwrap": "0.0.3"
-      },
-      "dependencies": {
-        "wordwrap": {
-          "version": "0.0.3",
-          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-          "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
-          "dev": true
-        }
+        "wordwrap": "1.0.0"
       }
     },
     "optionator": {
@@ -1083,7 +1059,7 @@
         "qs": "6.5.1",
         "safe-buffer": "5.1.1",
         "stringstream": "0.0.5",
-        "tough-cookie": "2.3.2",
+        "tough-cookie": "2.3.3",
         "tunnel-agent": "0.6.0",
         "uuid": "3.1.0"
       }
@@ -1180,9 +1156,9 @@
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
     },
     "tough-cookie": {
-      "version": "2.3.2",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
-      "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo=",
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.3.tgz",
+      "integrity": "sha1-C2GKVWW23qkL80JdBNVe3EdadWE=",
       "requires": {
         "punycode": "1.4.1"
       }
diff --git a/package.json b/package.json
index 1a859cd..3772714 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   },
   "name": "web-resource-inliner",
   "description": "Inlines img, script and link tags into the same file.",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "keywords": [
     "inline",
     "js",