diff --git a/testnet/stacks-node/src/tests/nakamoto_integrations.rs b/testnet/stacks-node/src/tests/nakamoto_integrations.rs
index 3ab7248db6..c2fd6245f2 100644
--- a/testnet/stacks-node/src/tests/nakamoto_integrations.rs
+++ b/testnet/stacks-node/src/tests/nakamoto_integrations.rs
@@ -167,13 +167,13 @@ lazy_static! {
         StacksEpoch {
             epoch_id: StacksEpochId::Epoch25,
             start_height: 201,
-            end_height: 251,
+            end_height: 231,
             block_limit: HELIUM_BLOCK_LIMIT_20.clone(),
             network_epoch: PEER_VERSION_EPOCH_2_5
         },
         StacksEpoch {
             epoch_id: StacksEpochId::Epoch30,
-            start_height: 251,
+            start_height: 231,
             end_height: STACKS_EPOCH_MAX,
             block_limit: HELIUM_BLOCK_LIMIT_20.clone(),
             network_epoch: PEER_VERSION_EPOCH_3_0
diff --git a/testnet/stacks-node/src/tests/signer/v0.rs b/testnet/stacks-node/src/tests/signer/v0.rs
index 17c3fdf814..98e2d64b55 100644
--- a/testnet/stacks-node/src/tests/signer/v0.rs
+++ b/testnet/stacks-node/src/tests/signer/v0.rs
@@ -13,8 +13,8 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-use std::str::FromStr;
 use std::ops::Add;
+use std::str::FromStr;
 use std::sync::atomic::Ordering;
 use std::time::{Duration, Instant};
 use std::{env, thread};
@@ -1566,6 +1566,8 @@ fn empty_sortition() {
             // make the duration long enough that the miner will be marked as malicious
             config.block_proposal_timeout = block_proposal_timeout;
         },
+        |_| {},
+        &[],
     );
     let http_origin = format!("http://{}", &signer_test.running_nodes.conf.node.rpc_bind);
     let short_timeout = Duration::from_secs(20);
@@ -1709,10 +1711,23 @@ fn mock_sign_epoch_25() {
     let send_amt = 100;
     let send_fee = 180;
 
-    let mut signer_test: SignerTest<SpawnedSigner> = SignerTest::new(
+    let mut signer_test: SignerTest<SpawnedSigner> = SignerTest::new_with_config_modifications(
         num_signers,
         vec![(sender_addr.clone(), send_amt + send_fee)],
         Some(Duration::from_secs(5)),
+        |_| {},
+        |node_config| {
+            let epochs = node_config.burnchain.epochs.as_mut().unwrap();
+            for epoch in epochs.iter_mut() {
+                if epoch.epoch_id == StacksEpochId::Epoch25 {
+                    epoch.end_height = 251;
+                }
+                if epoch.epoch_id == StacksEpochId::Epoch30 {
+                    epoch.start_height = 251;
+                }
+            }
+        },
+        &[],
     );
 
     let epochs = signer_test