diff --git a/Cargo.lock b/Cargo.lock
index 31dc43e..3b68a34 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -77,12 +77,6 @@ dependencies = [
  "syn 2.0.8",
 ]
 
-[[package]]
-name = "async_once"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ce4f10ea3abcd6617873bae9f91d1c5332b4a778bd9ce34d0cd517474c1de82"
-
 [[package]]
 name = "atomic"
 version = "0.5.1"
@@ -154,18 +148,16 @@ checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "cached"
-version = "0.42.0"
+version = "0.44.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e5877db5d1af7fae60d06b5db9430b68056a69b3582a0be8e3691e87654aeb6"
+checksum = "b195e4fbc4b6862bbd065b991a34750399c119797efff72492f28a5864de8700"
 dependencies = [
  "async-trait",
- "async_once",
  "cached_proc_macro",
  "cached_proc_macro_types",
  "futures",
  "hashbrown 0.13.2",
  "instant",
- "lazy_static",
  "once_cell",
  "thiserror",
  "tokio",
@@ -173,9 +165,9 @@ dependencies = [
 
 [[package]]
 name = "cached_proc_macro"
-version = "0.16.0"
+version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e10ca87c81aaa3a949dbbe2b5e6c2c45dbc94ba4897e45ea31ff9ec5087be3dc"
+checksum = "b48814962d2fd604c50d2b9433c2a41a0ab567779ee2c02f7fba6eca1221f082"
 dependencies = [
  "cached_proc_macro_types",
  "darling",
@@ -2070,6 +2062,7 @@ dependencies = [
  "memchr",
  "mio",
  "num_cpus",
+ "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
diff --git a/Cargo.toml b/Cargo.toml
index 3d9b831..74640d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ repository = "https://git.luon.net/paul/sinoptik"
 license = "MIT"
 
 [dependencies]
-cached = { version = "0.42.0", features = ["async"] }
+cached = { version = "0.44.0", features = ["async"] }
 chrono = "0.4.19"
 chrono-tz = "0.8.1"
 csv = "1.1.6"