diff --git a/python/CHANGELOG b/python/CHANGELOG
index 9d85234..9826707 100644
--- a/python/CHANGELOG
+++ b/python/CHANGELOG
@@ -1,3 +1,9 @@
+- 0.6.1
+	* Fix broken calls for some chains; force block height parameter
+- 0.6.0
+	* Upgrade deps
+- 0.5.0
+	* Upgrade deps
 - 0.4.0
 	* Upgrade chainlib
 - 0.3.0
diff --git a/python/eth_address_declarator/interface.py b/python/eth_address_declarator/interface.py
index 5dd3986..75409c1 100644
--- a/python/eth_address_declarator/interface.py
+++ b/python/eth_address_declarator/interface.py
@@ -19,6 +19,8 @@ from chainlib.eth.contract import (
         )
 from chainlib.jsonrpc import JSONRPCRequest
 from chainlib.eth.constant import ZERO_ADDRESS
+from chainlib.block import BlockSpec
+from chainlib.eth.jsonrpc import to_blockheight_param
 
 logg = logging.getLogger(__name__)
 
@@ -39,7 +41,7 @@ class Declarator(TxFactory):
         return tx
 
 
-    def declarator_count(self, contract_address, subject_address, sender_address=ZERO_ADDRESS, id_generator=None):
+    def declarator_count(self, contract_address, subject_address, sender_address=ZERO_ADDRESS, id_generator=None, height=BlockSpec.LATEST):
         j = JSONRPCRequest(id_generator)
         o = j.template()
         o['method'] = 'eth_call'
@@ -51,11 +53,13 @@ class Declarator(TxFactory):
         tx = self.template(sender_address, contract_address)
         tx = self.set_code(tx, data)
         o['params'].append(self.normalize(tx))
+        height = to_blockheight_param(height)
+        o['params'].append(height)
         o = j.finalize(o)
         return o
 
 
-    def declaration(self, contract_address, declarator_address, subject_address, sender_address=ZERO_ADDRESS, id_generator=None):
+    def declaration(self, contract_address, declarator_address, subject_address, sender_address=ZERO_ADDRESS, id_generator=None, height=BlockSpec.LATEST):
         j = JSONRPCRequest(id_generator)
         o = j.template()
         o['method'] = 'eth_call'
@@ -69,11 +73,13 @@ class Declarator(TxFactory):
         tx = self.template(sender_address, contract_address)
         tx = self.set_code(tx, data)
         o['params'].append(self.normalize(tx))
+        height = to_blockheight_param(height)
+        o['params'].append(height)
         o = j.finalize(o)
         return o
 
 
-    def declaration_address_at(self, contract_address, declarator_address, idx, sender_address=ZERO_ADDRESS, id_generator=None):
+    def declaration_address_at(self, contract_address, declarator_address, idx, sender_address=ZERO_ADDRESS, id_generator=None, height=BlockSpec.LATEST):
         j = JSONRPCRequest(id_generator)
         o = j.template()
         o['method'] = 'eth_call'
@@ -87,11 +93,13 @@ class Declarator(TxFactory):
         tx = self.template(sender_address, contract_address)
         tx = self.set_code(tx, data)
         o['params'].append(self.normalize(tx))
+        height = to_blockheight_param(height)
+        o['params'].append(height)
         o = j.finalize(o)
         return o
 
 
-    def declarator_address_at(self, contract_address, subject_address, idx, sender_address=ZERO_ADDRESS, id_generator=None):
+    def declarator_address_at(self, contract_address, subject_address, idx, sender_address=ZERO_ADDRESS, id_generator=None, height=BlockSpec.LATEST):
         j = JSONRPCRequest(id_generator)
         o = j.template()
         o['method'] = 'eth_call'
@@ -105,6 +113,8 @@ class Declarator(TxFactory):
         tx = self.template(sender_address, contract_address)
         tx = self.set_code(tx, data)
         o['params'].append(self.normalize(tx))
+        height = to_blockheight_param(height)
+        o['params'].append(height)
         o = j.finalize(o)
         return o
 
diff --git a/python/eth_address_declarator/runnable/view.py b/python/eth_address_declarator/runnable/view.py
index 3a74c56..1972372 100644
--- a/python/eth_address_declarator/runnable/view.py
+++ b/python/eth_address_declarator/runnable/view.py
@@ -15,6 +15,7 @@ import chainlib.eth.cli
 from chainlib.chain import ChainSpec
 from chainlib.error import JSONRPCException
 from chainlib.eth.address import to_checksum_address
+from chainlib.eth.constant import ZERO_ADDRESS
 from hexathon import (
         add_0x,
         strip_0x,
@@ -55,7 +56,7 @@ def process_config_local(config, arg, args, flags):
 
 arg_flags = ArgFlag()
 arg = Arg(arg_flags)
-flags = arg_flags.STD_WRITE | arg_flags.WALLET | arg_flags.EXEC
+flags = arg_flags.STD_WRITE | arg_flags.WALLET | arg_flags.EXEC | arg_flags.SENDER
 
 argparser = chainlib.eth.cli.ArgumentParser()
 argparser = process_args(argparser, arg, flags)
@@ -78,8 +79,8 @@ def out_element(e, w=sys.stdout):
     w.write(e[1] + '\n')
 
 
-def ls(ifc, conn, contract_address, declarator_address, subject_address, w=sys.stdout):
-    o = ifc.declaration(contract_address, declarator_address, subject_address)
+def ls(ifc, conn, contract_address, declarator_address, subject_address, w=sys.stdout, sender_address=ZERO_ADDRESS):
+    o = ifc.declaration(contract_address, declarator_address, subject_address, sender_address=sender_address)
     r =  conn.do(o)
     declarations = ifc.parse_declaration(r)
 
@@ -99,6 +100,7 @@ def main():
             settings.get('EXEC'),
             config.get('_DECLARATOR'),
             settings.get('RECIPIENT'),
+            sender_address=settings.get('SENDER_ADDRESS'),
             )
 
     declarations = []
diff --git a/python/requirements.txt b/python/requirements.txt
index ec9caf0..229ae2b 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,2 +1,3 @@
 confini~=0.6.0
-chainlib-eth~=0.4.7
+chainlib-eth~=0.4.16
+chainlib==0.4.12
diff --git a/python/setup.cfg b/python/setup.cfg
index adf1ffe..6d7145a 100644
--- a/python/setup.cfg
+++ b/python/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = eth-address-index
-version = 0.6.0
+version = 0.6.1
 description = Signed metadata declarations for ethereum addresses
 author = Louis Holbrook
 author_email = dev@holbrook.no