diff --git a/package.json b/package.json
index cf66703..839c027 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "ijavascript",
-    "version": "5.2.1",
+    "version": "5.3.0",
     "description": "IJavascript is a Javascript kernel for the Jupyter notebook",
     "keywords": [
         "javascript",
@@ -30,12 +30,12 @@
         "ijsnotebook": "bin/ijsnotebook.js"
     },
     "dependencies": {
-        "jp-kernel": "1 || 2"
+        "jp-kernel": "^2.1"
     },
     "devDependencies": {
         "debug": "2",
         "eslint": "2",
-        "jmp": "1 || 2",
+        "jmp": "^2.1",
         "jsdoc": "3",
         "mocha": "3",
         "uuid": "3"