diff --git a/test/functional/feature_block.py b/test/functional/feature_block.py
index 1080e77c40..33ee2f3af4 100755
--- a/test/functional/feature_block.py
+++ b/test/functional/feature_block.py
@@ -89,7 +89,6 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.extra_args = [[
             '-acceptnonstdtxn=1',  # This is a consensus block test, we don't care about tx policy
-            '-testactivationheight=bip34@2',
         ]]
 
     def run_test(self):
diff --git a/test/functional/feature_cltv.py b/test/functional/feature_cltv.py
index 7730db9672..c864931fbb 100755
--- a/test/functional/feature_cltv.py
+++ b/test/functional/feature_cltv.py
@@ -84,8 +84,7 @@ class BIP65Test(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
         self.extra_args = [[
-            f'-testactivationheight=cltv@{CLTV_HEIGHT}',
-            '-whitelist=noban@127.0.0.1',
+            f'-whitelist=noban@127.0.0.1',
             '-par=1',  # Use only one script thread to get the exact reject reason for testing
             '-acceptnonstdtxn=1',  # cltv_invalidate is nonstandard
         ]]
@@ -93,12 +92,8 @@ def set_test_params(self):
         self.rpc_timeout = 480
 
     def test_cltv_info(self, *, is_active):
-        assert_equal(self.nodes[0].getdeploymentinfo()['deployments']['bip65'], {
-                "active": is_active,
-                "height": CLTV_HEIGHT,
-                "type": "buried",
-            },
-        )
+        # Blackcoin: assume that CLTV is always active
+        pass
 
     def run_test(self):
         peer = self.nodes[0].add_p2p_connection(P2PInterface())
diff --git a/test/functional/feature_dersig.py b/test/functional/feature_dersig.py
index 4a66863d91..06b73cb1ee 100755
--- a/test/functional/feature_dersig.py
+++ b/test/functional/feature_dersig.py
@@ -48,8 +48,7 @@ class BIP66Test(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
         self.extra_args = [[
-            f'-testactivationheight=dersig@{DERSIG_HEIGHT}',
-            '-whitelist=noban@127.0.0.1',
+            f'-whitelist=noban@127.0.0.1',
             '-par=1',  # Use only one script thread to get the exact log msg for testing
         ]]
         self.setup_clean_chain = True
@@ -60,13 +59,8 @@ def create_tx(self, input_txid):
         return self.miniwallet.create_self_transfer(utxo_to_spend=utxo_to_spend)['tx']
 
     def test_dersig_info(self, *, is_active):
-        assert_equal(self.nodes[0].getdeploymentinfo()['deployments']['bip66'],
-            {
-                "active": is_active,
-                "height": DERSIG_HEIGHT,
-                "type": "buried",
-            },
-        )
+        # Blackcoin: assume that DERSIG is always active
+        pass
 
     def run_test(self):
         peer = self.nodes[0].add_p2p_connection(P2PInterface())
diff --git a/test/functional/rpc_blockchain.py b/test/functional/rpc_blockchain.py
index 6022042c11..5b44a9e934 100755
--- a/test/functional/rpc_blockchain.py
+++ b/test/functional/rpc_blockchain.py
@@ -167,10 +167,6 @@ def _test_getblockchaininfo(self):
             extra_args=['-testactivationheight=name@2'],
             expected_msg='Error: Invalid name (name@2) for -testactivationheight=name@height.',
         )
-        self.nodes[0].assert_start_raises_init_error(
-            extra_args=['-testactivationheight=bip34@-2'],
-            expected_msg='Error: Invalid height value (bip34@-2) for -testactivationheight=name@height.',
-        )
         self.nodes[0].assert_start_raises_init_error(
             extra_args=['-testactivationheight='],
             expected_msg='Error: Invalid format () for -testactivationheight=name@height.',
@@ -198,9 +194,6 @@ def check_signalling_deploymentinfo_result(self, gdi_result, height, blockhash,
           "hash": blockhash,
           "height": height,
           "deployments": {
-            'bip34': {'type': 'buried', 'active': True, 'height': 2},
-            'bip66': {'type': 'buried', 'active': True, 'height': 3},
-            'bip65': {'type': 'buried', 'active': True, 'height': 4},
             'csv': {'type': 'buried', 'active': True, 'height': 5},
             'segwit': {'type': 'buried', 'active': True, 'height': 6},
             'testdummy': {
@@ -247,9 +240,6 @@ def _test_getdeploymentinfo(self):
         self.log.info("Test getdeploymentinfo")
         self.stop_node(0)
         self.start_node(0, extra_args=[
-            '-testactivationheight=bip34@2',
-            '-testactivationheight=dersig@3',
-            '-testactivationheight=cltv@4',
             '-testactivationheight=csv@5',
             '-testactivationheight=segwit@6',
         ])