diff --git a/README.ipynb b/README.ipynb
index 529bd4b67661043170f74c00382404c7f1601d8d..0452a183dc0ffb741e61699901ced8f6c53bfa9c 100644
--- a/README.ipynb
+++ b/README.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 1,
    "metadata": {
     "jupyter": {
      "source_hidden": true
@@ -35,7 +35,7 @@
        "\n",
        "For more information, you can contact us at : \n",
        "[<img width=\"200px\" style=\"vertical-align:middle\" src=\"fidle/img/00-Mail_contact.svg\"></img>](#top)  \n",
-       "Current Version : 0.5.3  \n",
+       "Current Version : 0.5.4 DEV  \n",
        "\n",
        "\n",
        "## Course materials\n",
diff --git a/README.md b/README.md
index f08816f0903b42baf70aecf84afaed1afc549bf8..7b393a07d06fc4a58ea54c0b7370664abd07434f 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ The objectives of this training are :
 
 For more information, you can contact us at : 
 [<img width="200px" style="vertical-align:middle" src="fidle/img/00-Mail_contact.svg"></img>](#top)  
-Current Version : 0.5.3  
+Current Version : 0.5.4 DEV  
 
 
 ## Course materials