diff --git a/software/ipython_notebook/software.cfg b/software/ipython_notebook/software.cfg
index 9d67a0960a35cf34a1780c350c2be27a3cd7ca60..54b747ed0f9a3c185090a7bf8c780653e0ac4def 100644
--- a/software/ipython_notebook/software.cfg
+++ b/software/ipython_notebook/software.cfg
@@ -43,7 +43,7 @@ md5sum = d7d4a7e19d55bf14007819258bf42100
 [erp5-kernel]
 <= download-file-base
 filename = ERP5kernel.py.jinja
-md5sum = e6d7d9cee8095fb8788af3c6d82b9b6f
+md5sum = 3dfc6a7c16828bff55dec4cf96b730d3
 
 [kernel-json]
 <= download-file-base
diff --git a/software/ipython_notebook/template/ERP5kernel.py.jinja b/software/ipython_notebook/template/ERP5kernel.py.jinja
index d06bd552e08313074414c57f7ab9b6182bd1392f..2aca5d4c9f8b3e58073675cb35cb2d512c743b1c 100644
--- a/software/ipython_notebook/template/ERP5kernel.py.jinja
+++ b/software/ipython_notebook/template/ERP5kernel.py.jinja
@@ -172,11 +172,11 @@ class ERP5Kernel(Kernel):
     """
 
     try:
-      erp5_request = requests.get(
+      erp5_request = requests.post(
         self.url,
         verify=False,
         auth=(self.user, self.password),
-        params={
+        data={
           'python_expression': code,
           'reference': self.reference,
           'title': self.title,