diff --git a/Cargo.lock b/Cargo.lock
index 95815df..8d03302 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -442,7 +442,6 @@ dependencies = [
  "parking_lot",
  "scc",
  "serial_test_derive",
- "tokio",
 ]
 
 [[package]]
diff --git a/serial_test/Cargo.toml b/serial_test/Cargo.toml
index bca033e..e28f2c0 100644
--- a/serial_test/Cargo.toml
+++ b/serial_test/Cargo.toml
@@ -25,7 +25,6 @@ env_logger = {version="0.10", optional=true}
 
 [dev-dependencies]
 itertools = "0.10"
-tokio = { version = "^1.27", features = ["macros", "rt"] }
 
 [features]
 default = ["logging", "async"]
@@ -52,4 +51,4 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [package.metadata.cargo-all-features]
 skip_optional_dependencies = true
-denylist = ["docsrs", "test_logging"]
\ No newline at end of file
+denylist = ["docsrs", "test_logging"]
diff --git a/serial_test/src/parallel_code_lock.rs b/serial_test/src/parallel_code_lock.rs
index fe47e0f..f4b8d73 100644
--- a/serial_test/src/parallel_code_lock.rs
+++ b/serial_test/src/parallel_code_lock.rs
@@ -133,9 +133,9 @@ mod tests {
         );
     }
 
-    #[tokio::test]
+    #[test]
     #[cfg(feature = "async")]
-    async fn unlock_on_assert_async_without_return() {
+    fn unlock_on_assert_async_without_return() {
         async fn demo_assert() {
             assert!(false);
         }
@@ -149,8 +149,6 @@ mod tests {
         }
         // as per https://stackoverflow.com/a/66529014/320546
         let _ = panic::catch_unwind(|| {
-            let handle = tokio::runtime::Handle::current();
-            let _enter_guard = handle.enter();
             futures::executor::block_on(call_serial_test_fn());
         });
         assert_eq!(
@@ -163,9 +161,9 @@ mod tests {
         );
     }
 
-    #[tokio::test]
+    #[test]
     #[cfg(feature = "async")]
-    async fn unlock_on_assert_async_with_return() {
+    fn unlock_on_assert_async_with_return() {
         async fn demo_assert() -> Result<(), Error> {
             assert!(false);
             Ok(())
@@ -183,8 +181,6 @@ mod tests {
 
         // as per https://stackoverflow.com/a/66529014/320546
         let _ = panic::catch_unwind(|| {
-            let handle = tokio::runtime::Handle::current();
-            let _enter_guard = handle.enter();
             futures::executor::block_on(call_serial_test_fn());
         });
         assert_eq!(
diff --git a/serial_test/src/parallel_file_lock.rs b/serial_test/src/parallel_file_lock.rs
index a030e74..61b9d3a 100644
--- a/serial_test/src/parallel_file_lock.rs
+++ b/serial_test/src/parallel_file_lock.rs
@@ -131,9 +131,9 @@ mod tests {
         unlock_ok(&lock_path);
     }
 
-    #[tokio::test]
+    #[test]
     #[cfg(feature = "async")]
-    async fn unlock_on_assert_async_without_return() {
+    fn unlock_on_assert_async_without_return() {
         let lock_path = path_for_name("unlock_on_assert_async_without_return");
         async fn demo_assert() {
             assert!(false);
@@ -147,18 +147,15 @@ mod tests {
             .await
         }
 
-        // as per https://stackoverflow.com/a/66529014/320546
         let _ = panic::catch_unwind(|| {
-            let handle = tokio::runtime::Handle::current();
-            let _enter_guard = handle.enter();
             futures::executor::block_on(call_serial_test_fn(&lock_path));
         });
         unlock_ok(&lock_path);
     }
 
-    #[tokio::test]
+    #[test]
     #[cfg(feature = "async")]
-    async fn unlock_on_assert_async_with_return() {
+    fn unlock_on_assert_async_with_return() {
         let lock_path = path_for_name("unlock_on_assert_async_with_return");
 
         async fn demo_assert() -> Result<(), Error> {
@@ -176,10 +173,7 @@ mod tests {
             .await;
         }
 
-        // as per https://stackoverflow.com/a/66529014/320546
         let _ = panic::catch_unwind(|| {
-            let handle = tokio::runtime::Handle::current();
-            let _enter_guard = handle.enter();
             futures::executor::block_on(call_serial_test_fn(&lock_path));
         });
         unlock_ok(&lock_path);