diff --git a/crates/mun_hir/Cargo.toml b/crates/mun_hir/Cargo.toml
index 5150e670c..3faad5680 100644
--- a/crates/mun_hir/Cargo.toml
+++ b/crates/mun_hir/Cargo.toml
@@ -21,3 +21,4 @@ either = "1.5.3"
 
 [dev-dependencies]
 insta = "0.12.0"
+parking_lot = "0.10"
diff --git a/crates/mun_hir/src/mock.rs b/crates/mun_hir/src/mock.rs
index 3a8cf9a69..4af824cbd 100644
--- a/crates/mun_hir/src/mock.rs
+++ b/crates/mun_hir/src/mock.rs
@@ -1,7 +1,8 @@
 use crate::db::SourceDatabase;
 use crate::input::{SourceRoot, SourceRootId};
 use crate::{FileId, RelativePathBuf};
-use std::sync::{Arc, Mutex};
+use parking_lot::Mutex;
+use std::sync::Arc;
 
 /// A mock implementation of the IR database. It can be used to set up a simple test case.
 #[salsa::database(
@@ -21,7 +22,7 @@ impl salsa::Database for MockDatabase {
     }
 
     fn salsa_event(&self, event: impl Fn() -> salsa::Event<MockDatabase>) {
-        let mut events = self.events.lock().unwrap();
+        let mut events = self.events.lock();
         if let Some(events) = &mut *events {
             events.push(event());
         }
@@ -51,9 +52,9 @@ impl MockDatabase {
 
 impl MockDatabase {
     pub fn log(&self, f: impl FnOnce()) -> Vec<salsa::Event<MockDatabase>> {
-        *self.events.lock().unwrap() = Some(Vec::new());
+        *self.events.lock() = Some(Vec::new());
         f();
-        self.events.lock().unwrap().take().unwrap()
+        self.events.lock().take().unwrap()
     }
 
     pub fn log_executed(&self, f: impl FnOnce()) -> Vec<String> {
diff --git a/crates/mun_runtime/Cargo.toml b/crates/mun_runtime/Cargo.toml
index 1fadb6300..9ac45ce87 100644
--- a/crates/mun_runtime/Cargo.toml
+++ b/crates/mun_runtime/Cargo.toml
@@ -14,7 +14,7 @@ failure = "0.1.5"
 libloading = "0.5"
 md5= "0.7.0"
 notify = "4.0.12"
-parking_lot = "0.9"
+parking_lot = "0.10"
 tempfile = "3"
 once_cell = "1.3.1"
 
diff --git a/crates/mun_runtime_capi/Cargo.toml b/crates/mun_runtime_capi/Cargo.toml
index 24330d7c8..d3d086099 100644
--- a/crates/mun_runtime_capi/Cargo.toml
+++ b/crates/mun_runtime_capi/Cargo.toml
@@ -17,7 +17,7 @@ failure = "0.1.5"
 lazy_static = "1.4.0"
 mun_abi = { path = "../mun_abi" }
 mun_runtime = { path = "../mun_runtime" }
-parking_lot = "0.9.0"
+parking_lot = "0.10"
 rand = "0.7.2"
 
 [dev-dependencies]