diff --git a/Cargo.lock b/Cargo.lock
index c1fbd59c22..53868a05a0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1054,6 +1054,19 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "dashmap"
+version = "5.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "907076dfda823b0b36d2a1bb5f90c96660a5bbcd7729e10727f07858f22c4edc"
+dependencies = [
+ "cfg-if 1.0.0",
+ "hashbrown 0.12.3",
+ "lock_api",
+ "once_cell",
+ "parking_lot_core",
+]
+
 [[package]]
 name = "digest"
 version = "0.8.1"
@@ -2029,6 +2042,16 @@ version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4cd1a83af159aa67994778be9070f0ae1bd732942279cabb14f86f986a21456"
 
+[[package]]
+name = "lock_api"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -2402,6 +2425,29 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c42a9226546d68acdd9c0a280d17ce19bfe27a46bf68784e4066115788d008e"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "redox_syscall 0.4.1",
+ "smallvec",
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "peeking_take_while"
 version = "0.1.2"
@@ -2775,6 +2821,15 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "redox_users"
 version = "0.4.3"
@@ -3297,6 +3352,31 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serial_test"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "953ad9342b3aaca7cb43c45c097dd008d4907070394bd0751a0aa8817e5a018d"
+dependencies = [
+ "dashmap",
+ "futures",
+ "lazy_static",
+ "log",
+ "parking_lot",
+ "serial_test_derive",
+]
+
+[[package]]
+name = "serial_test_derive"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b93fb4adc70021ac1b47f7d45e8cc4169baaa7ea58483bc5b721d19a26202212"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.29",
+]
+
 [[package]]
 name = "sha1"
 version = "0.6.1"
@@ -3588,6 +3668,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "serde_stacker",
+ "serial_test",
  "slog",
  "slog-json",
  "slog-term",
diff --git a/stacks-signer/Cargo.toml b/stacks-signer/Cargo.toml
index 5c65c43397..77d747fe78 100644
--- a/stacks-signer/Cargo.toml
+++ b/stacks-signer/Cargo.toml
@@ -43,6 +43,9 @@ tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
 wsts = { workspace = true }
 rand = { workspace = true }
 
+[dev-dependencies]
+serial_test = "3.0.0"
+
 [dependencies.serde_json]
 version = "1.0"
 features = ["arbitrary_precision", "unbounded_depth"]
diff --git a/stacks-signer/src/client/stackerdb.rs b/stacks-signer/src/client/stackerdb.rs
index 771dc5ff6d..73e30d67e2 100644
--- a/stacks-signer/src/client/stackerdb.rs
+++ b/stacks-signer/src/client/stackerdb.rs
@@ -177,11 +177,13 @@ mod tests {
         TransactionSmartContract, TransactionVersion,
     };
     use blockstack_lib::util_lib::strings::StacksString;
+    use serial_test::serial;
 
     use super::*;
     use crate::client::tests::{write_response, TestConfig};
 
     #[test]
+    #[serial]
     fn get_signer_transactions_with_retry_should_succeed() {
         let mut config = TestConfig::new();
         let sk = StacksPrivateKey::new();
@@ -226,6 +228,7 @@ mod tests {
     }
 
     #[test]
+    #[serial]
     fn send_signer_message_with_retry_should_succeed() {
         let mut config = TestConfig::new();
         let sk = StacksPrivateKey::new();
diff --git a/stacks-signer/src/runloop.rs b/stacks-signer/src/runloop.rs
index 69b820b298..96a1e897ff 100644
--- a/stacks-signer/src/runloop.rs
+++ b/stacks-signer/src/runloop.rs
@@ -995,6 +995,7 @@ mod tests {
     use libsigner::SIGNER_SLOTS_PER_USER;
     use rand::distributions::Standard;
     use rand::Rng;
+    use serial_test::serial;
     use stacks_common::bitvec::BitVec;
     use stacks_common::types::chainstate::{
         ConsensusHash, StacksBlockId, StacksPrivateKey, TrieHash,
@@ -1192,6 +1193,7 @@ mod tests {
     }
 
     #[test]
+    #[serial]
     fn get_expected_transactions_should_filter_invalid_transactions() {
         // Create a runloop of a valid signer
         let config = Config::load_from_file("./src/tests/conf/signer-0.toml").unwrap();
@@ -1298,6 +1300,7 @@ mod tests {
     }
 
     #[test]
+    #[serial]
     fn verify_transactions_valid() {
         let config = Config::load_from_file("./src/tests/conf/signer-0.toml").unwrap();
         let mut runloop: RunLoop<FireCoordinator<v2::Aggregator>> = RunLoop::from(&config);