diff --git a/Cargo.lock b/Cargo.lock
index 00bc07bb..5b531223 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3178,7 +3178,6 @@ dependencies = [
  "dashmap 6.0.1",
  "derive_more",
  "indexmap",
- "parking_lot",
  "pprof",
  "rand",
  "rand_xorshift",
diff --git a/crates/libmdbx-rs/Cargo.toml b/crates/libmdbx-rs/Cargo.toml
index e02d1bc8..df68e76b 100644
--- a/crates/libmdbx-rs/Cargo.toml
+++ b/crates/libmdbx-rs/Cargo.toml
@@ -12,7 +12,6 @@ bitflags = "2"
 byteorder = "1"
 derive_more = "0.99"
 indexmap = "2"
-parking_lot = "0.12"
 thiserror = "1"
 dashmap = { version = "6.0.1", features = ["inline"], optional = true }
 tracing = "0.1.0"
diff --git a/crates/libmdbx-rs/src/codec.rs b/crates/libmdbx-rs/src/codec.rs
index 15f20204..b4964b12 100644
--- a/crates/libmdbx-rs/src/codec.rs
+++ b/crates/libmdbx-rs/src/codec.rs
@@ -41,10 +41,14 @@ impl<'tx> TableObject for Cow<'tx, [u8]> {
 
         #[cfg(not(feature = "return-borrowed"))]
         {
-            let is_dirty = (!K::IS_READ_ONLY) &&
-                crate::error::mdbx_result(ffi::mdbx_is_dirty(_txn, data_val.iov_base))?;
+            let is_dirty = (!K::IS_READ_ONLY)
+                && crate::error::mdbx_result(ffi::mdbx_is_dirty(_txn, data_val.iov_base))?;
 
-            Ok(if is_dirty { Cow::Owned(s.to_vec()) } else { Cow::Borrowed(s) })
+            Ok(if is_dirty {
+                Cow::Owned(s.to_vec())
+            } else {
+                Cow::Borrowed(s)
+            })
         }
     }
 }
@@ -81,7 +85,7 @@ impl TableObject for ObjectLength {
 impl<const LEN: usize> TableObject for [u8; LEN] {
     fn decode(data_val: &[u8]) -> Result<Self, Error> {
         if data_val.len() != LEN {
-            return Err(Error::DecodeErrorLenDiff)
+            return Err(Error::DecodeErrorLenDiff);
         }
         let mut a = [0; LEN];
         a[..].copy_from_slice(data_val);
diff --git a/crates/libmdbx-rs/src/transaction.rs b/crates/libmdbx-rs/src/transaction.rs
index ea12bf70..43aef821 100644
--- a/crates/libmdbx-rs/src/transaction.rs
+++ b/crates/libmdbx-rs/src/transaction.rs
@@ -8,13 +8,12 @@ use crate::{
 };
 use ffi::{MDBX_txn_flags_t, MDBX_TXN_RDONLY, MDBX_TXN_READWRITE};
 use indexmap::IndexSet;
-use parking_lot::{Mutex, MutexGuard};
 use std::{
     ffi::{c_uint, c_void},
     fmt::{self, Debug},
     mem::size_of,
     ptr, slice,
-    sync::{atomic::AtomicBool, mpsc::sync_channel, Arc},
+    sync::{atomic::AtomicBool, mpsc::sync_channel, Arc, Mutex, MutexGuard},
     time::Duration,
 };
 
@@ -173,7 +172,7 @@ where
     }
 
     pub fn prime_for_permaopen(&self, db: Database) {
-        self.inner.primed_dbis.lock().insert(db.dbi());
+        self.inner.primed_dbis.lock().unwrap().insert(db.dbi());
     }
 
     /// Commits the transaction and returns table handles permanently open until dropped.
@@ -211,6 +210,7 @@ where
                 self.inner
                     .primed_dbis
                     .lock()
+                    .unwrap()
                     .iter()
                     .map(|&dbi| Database::new_from_ptr(dbi, self.env().clone()))
                     .collect(),
@@ -607,7 +607,7 @@ impl TransactionPtr {
     }
 
     fn lock(&self) -> MutexGuard<'_, ()> {
-        if let Some(lock) = self.lock.try_lock() {
+        if let Ok(lock) = self.lock.try_lock() {
             lock
         } else {
             tracing::debug!(
@@ -616,7 +616,7 @@ impl TransactionPtr {
                 backtrace = %std::backtrace::Backtrace::force_capture(),
                 "Transaction lock is already acquired, blocking..."
             );
-            self.lock.lock()
+            self.lock.lock().unwrap()
         }
     }