diff --git a/Cargo.lock b/Cargo.lock
index 14ebefd3f..2ab4bcd36 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -670,7 +670,6 @@ dependencies = [
  "libloading",
  "log",
  "nix",
- "parking_lot",
  "rand",
  "regex",
  "reqwest",
@@ -700,7 +699,6 @@ dependencies = [
  "conduit_core",
  "log",
  "lru-cache",
- "parking_lot",
  "ruma",
  "rust-rocksdb-uwu",
  "tokio",
diff --git a/Cargo.toml b/Cargo.toml
index 446acb829..d93292732 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -378,10 +378,6 @@ version = "0.5.4"
 default-features = false
 features = ["use_std"]
 
-# used only by rusqlite
-[workspace.dependencies.parking_lot]
-version = "0.12.3"
-
 [workspace.dependencies.tokio-metrics]
 version = "0.3.1"
 default-features = false
diff --git a/src/core/Cargo.toml b/src/core/Cargo.toml
index 884d908e4..dc3fc1d4d 100644
--- a/src/core/Cargo.toml
+++ b/src/core/Cargo.toml
@@ -67,8 +67,6 @@ ipaddress.workspace = true
 itertools.workspace = true
 libloading.workspace = true
 log.workspace = true
-parking_lot.optional = true
-parking_lot.workspace = true
 rand.workspace = true
 regex.workspace = true
 reqwest.workspace = true
diff --git a/src/database/Cargo.toml b/src/database/Cargo.toml
index 547cdc385..1bc382a02 100644
--- a/src/database/Cargo.toml
+++ b/src/database/Cargo.toml
@@ -42,8 +42,6 @@ chrono.workspace = true
 conduit-core.workspace = true
 log.workspace = true
 lru-cache.workspace = true
-parking_lot.optional = true
-parking_lot.workspace = true
 ruma.workspace = true
 rust-rocksdb.optional = true
 rust-rocksdb.workspace = true