diff --git a/test/functional/feature_assumevalid.py b/test/functional/feature_assumevalid.py
--- a/test/functional/feature_assumevalid.py
+++ b/test/functional/feature_assumevalid.py
@@ -191,7 +191,7 @@
         for i in range(2202):
             p2p1.send_message(msg_block(self.blocks[i]))
         # Syncing 2200 blocks can take a while on slow systems. Give it plenty of time to sync.
-        p2p1.sync_with_ping(120)
+        p2p1.sync_with_ping(200)
         assert_equal(self.nodes[1].getblock(
             self.nodes[1].getbestblockhash())['height'], 2202)
 
diff --git a/test/functional/feature_cltv.py b/test/functional/feature_cltv.py
--- a/test/functional/feature_cltv.py
+++ b/test/functional/feature_cltv.py
@@ -86,6 +86,7 @@
         self.num_nodes = 1
         self.extra_args = [['-whitelist=127.0.0.1']]
         self.setup_clean_chain = True
+        self.rpc_timeout = 120
 
     def run_test(self):
         self.nodes[0].add_p2p_connection(P2PInterface())
diff --git a/test/functional/feature_dersig.py b/test/functional/feature_dersig.py
--- a/test/functional/feature_dersig.py
+++ b/test/functional/feature_dersig.py
@@ -48,6 +48,7 @@
         self.num_nodes = 1
         self.extra_args = [['-whitelist=127.0.0.1', '-enablebip61']]
         self.setup_clean_chain = True
+        self.rpc_timeout = 120
 
     def run_test(self):
         self.nodes[0].add_p2p_connection(P2PInterface())