diff --git a/_ucoinpy_test/api/bma/test_blockchain.py b/_ucoinpy_test/api/bma/test_blockchain.py
index 72855f337815171cd35b94cc93dd9d3744492fed..08055076ff9287efb521e41a333f37cab853b53e 100644
--- a/_ucoinpy_test/api/bma/test_blockchain.py
+++ b/_ucoinpy_test/api/bma/test_blockchain.py
@@ -189,14 +189,14 @@ class Test_BMA_Blockchain(WebFunctionalSetupMixin, unittest.TestCase):
             "sigDate": 1421787800,
             "memberships": [
                 {
-                    "version": "1",
+                    "version": 1,
                     "currency": "meta_brouzouf",
                     "membership": "IN",
                     "blockNumber": 0,
                     "blockHash": "DA39A3EE5E6B4B0D3255BFEF95601890AFD80709"
                 },
                 {
-                    "version": "1",
+                    "version": 1,
                     "currency": "meta_brouzouf",
                     "membership": "IN",
                     "blockNumber": 31658,
diff --git a/ucoinpy/__init__.py b/ucoinpy/__init__.py
index 2545271cba2c781d29ab051fe23bd5cd81d628f0..a17013a594538bef30b942cbbf38a9ceb95a31b1 100644
--- a/ucoinpy/__init__.py
+++ b/ucoinpy/__init__.py
@@ -21,7 +21,7 @@ PROTOCOL_VERSION="1"
 MANAGED_API=["BASIC_MERKLED_API"]
 
 __author__      = 'Caner Candan & inso'
-__version__     = '0.13.0'
+__version__     = '0.13.1'
 __nonsense__    = 'uCoin'
 
 from . import api, documents, key
\ No newline at end of file
diff --git a/ucoinpy/api/bma/blockchain/__init__.py b/ucoinpy/api/bma/blockchain/__init__.py
index bc44aa9c34b1fdfd326bfdf75b51a86c3d83955b..95bfc187f262a8322d38eaf1671d63c2b3b16785 100644
--- a/ucoinpy/api/bma/blockchain/__init__.py
+++ b/ucoinpy/api/bma/blockchain/__init__.py
@@ -81,6 +81,7 @@ class Parameters(Blockchain):
         "required": ["currency", "c", "dt", "ud0","sigDelay","sigValidity","sigQty","sigWoT","msValidity",
                      "stepMax", "medianTimeBlocks", "avgGenTime", "dtDiffEval", "blocksRot", "percentRot"]
     }
+
     async def __get__(self, **kwargs):
         r = await self.requests_get('/parameters', **kwargs)
         return (await self.parse(r))
@@ -107,7 +108,7 @@ class Membership(Blockchain):
                     "type": "object",
                     "properties": {
                         "version": {
-                            "type": "string"
+                            "type": "number"
                         },
                         "currency": {
                             "type": "string"
@@ -116,7 +117,7 @@ class Membership(Blockchain):
                             "type": "string"
                         },
                         "blockNumber": {
-                            "type": "number",
+                            "type": "number"
                         },
                         "blockHash": {
                             "type": "string"