diff --git a/Cargo.lock b/Cargo.lock
index 1dcbc14f01..22a26ba133 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -37,9 +37,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.51"
+version = "1.0.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b26702f315f53b6071259e15dd9d64528213b44d61de1ec926eca7715d62203"
+checksum = "84450d0b4a8bd1ba4144ce8ce718fbc5d071358b1e5384bace6536b3d1f2d5b3"
 
 [[package]]
 name = "anymap"
@@ -114,9 +114,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "camino"
-version = "1.0.5"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52d74260d9bf6944e2208aa46841b4b8f0d7ffc0849a06837b2f510337f86b2b"
+checksum = "6f3132262930b0522068049f5870a856ab8affc80c70d08b6ecb785771a6fc23"
 dependencies = [
  "serde",
 ]
@@ -226,7 +226,7 @@ version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "03746e0c6dd9b5d2d9132ffe0bede35fb5f815604fd371bb42599fd37bc8e483"
 dependencies = [
- "dashmap",
+ "dashmap 4.0.2",
  "once_cell",
  "rustc-hash",
 ]
@@ -239,18 +239,18 @@ checksum = "0d48d8f76bd9331f19fe2aaf3821a9f9fb32c3963e1e3d6ce82a8c09cef7444a"
 
 [[package]]
 name = "crc32fast"
-version = "1.3.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "738c290dfaea84fc1ca15ad9c168d083b05a714e1efddd8edaab678dc28d2836"
+checksum = "a2209c310e29876f7f0b2721e7e26b84aff178aa3da5d091f9bfbf47669e60e3"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+checksum = "e54ea8bc3fb1ee042f5aace6e3c6e025d3874866da222930f70ce62aceba0bfa"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -269,9 +269,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.5"
+version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ec02e091aa634e2c3ada4a392989e7c3116673ef0ac5b72232439094d73b7fd"
+checksum = "97242a70df9b89a65d0b6df3c4bf5b9ce03c5b7309019777fbde37e7537f8762"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -282,9 +282,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.5"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+checksum = "cfcae03edb34f947e64acdb1c33ec169824e20657e9ecb61cef6c8c74dcb8120"
 dependencies = [
  "cfg-if",
  "lazy_static",
@@ -300,6 +300,17 @@ dependencies = [
  "num_cpus",
 ]
 
+[[package]]
+name = "dashmap"
+version = "5.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b799062aaf67eb976af3bdca031ee6f846d2f0a5710ddbb0d2efee33f3cc4760"
+dependencies = [
+ "cfg-if",
+ "num_cpus",
+ "parking_lot",
+]
+
 [[package]]
 name = "derive_arbitrary"
 version = "1.0.2"
@@ -417,9 +428,9 @@ checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
 
 [[package]]
 name = "fsevent-sys"
-version = "4.0.0"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c0e564d24da983c053beff1bb7178e237501206840a3e6bf4e267b9e8ae734a"
+checksum = "76ee7a02da4d231650c7cea31349b889be2f45ddb3ef3032d2ec8185f6313fd2"
 dependencies = [
  "libc",
 ]
@@ -489,7 +500,7 @@ dependencies = [
  "base_db",
  "cfg",
  "cov-mark",
- "dashmap",
+ "dashmap 5.0.0",
  "drop_bomb",
  "either",
  "expect-test",
@@ -499,8 +510,10 @@ dependencies = [
  "itertools",
  "la-arena",
  "limit",
+ "lock_api",
  "mbe",
  "once_cell",
+ "parking_lot",
  "profile",
  "rustc-hash",
  "smallvec",
@@ -718,9 +731,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -808,15 +821,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.112"
+version = "0.2.113"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
+checksum = "eef78b64d87775463c549fbd80e19249ef436ea3bf1de2a1eb7e717ec7fab1e9"
 
 [[package]]
 name = "libloading"
-version = "0.7.2"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afe203d669ec979b7128619bae5a63b7b42e9203c1b29146079ee05e2f604b52"
+checksum = "efbc0f03f9a775e9f6aed295c6a1ba2253c5757a9e03d55c6caa46a681abcddd"
 dependencies = [
  "cfg-if",
  "winapi",
@@ -916,9 +929,9 @@ checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
 [[package]]
 name = "memmap2"
-version = "0.5.0"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4647a11b578fead29cdbb34d4adef8dd3dc35b876c9c6d5240d83f205abfe96e"
+checksum = "fe3179b85e1fd8b14447cbebadb75e45a1002f541b925f0bfec366d56a81c56d"
 dependencies = [
  "libc",
 ]
@@ -1011,9 +1024,9 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.13.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
 dependencies = [
  "hermit-abi",
  "libc",
@@ -1030,9 +1043,9 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.28.1"
+version = "0.28.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ce8b38d41f9f3618fc23f908faae61510f8d8ce2d99cbe910641e8f1971f084"
+checksum = "40bec70ba014595f99f7aa110b84331ffe1ee9aece7fe6f387cc7e3ecda4d456"
 dependencies = [
  "memchr",
 ]
@@ -1132,15 +1145,15 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.7"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d31d11c69a6b52a174b42bdc0c30e5e11670f90788b2c471c31c1d17d449443"
+checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.34"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f84e92c0f7c9d58328b85a78557813e4bd845130db68d7184635344399423b1"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
@@ -1150,7 +1163,7 @@ name = "proc_macro_api"
 version = "0.0.0"
 dependencies = [
  "memmap2",
- "object 0.28.1",
+ "object 0.28.3",
  "paths",
  "profile",
  "serde",
@@ -1169,7 +1182,7 @@ dependencies = [
  "libloading",
  "mbe",
  "memmap2",
- "object 0.28.1",
+ "object 0.28.3",
  "paths",
  "proc_macro_api",
  "proc_macro_test",
@@ -1246,9 +1259,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
@@ -1464,18 +1477,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.132"
+version = "1.0.134"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b9875c23cf305cd1fd7eb77234cbb705f21ea6a72c637a5c6db5fe4b8e7f008"
+checksum = "96b3c34c1690edf8174f5b289a336ab03f568a4460d8c6df75f2f3a692b3bc6a"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.132"
+version = "1.0.134"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc0db5cb2556c0e558887d9bbdcf6ac4471e83ff66cf696e5419024d1606276"
+checksum = "784ed1fbfa13fe191077537b0d70ec8ad1e903cfe04831da608aa36457cb653d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1484,9 +1497,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.73"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcbd0344bc6533bc7ec56df11d42fb70f1b912351c0825ccb7211b59d8af7cf5"
+checksum = "c059c05b48c5c0067d4b4b2b4f0732dd65feb52daf7e0ea09cd87e7dadc1af79"
 dependencies = [
  "indexmap",
  "itoa",
@@ -1516,9 +1529,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "smol_str"
@@ -1555,9 +1568,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.82"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8daf5dd0bb60cbd4137b1b587d2fc0ae729bc07cf01cd70b36a1ed5ade3b9d59"
+checksum = "8a65b3f4ffa0092e9887669db0eae07941f023991ab58ea44da8fe8e2d511c6b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1742,9 +1755,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-subscriber"
-version = "0.3.3"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "245da694cc7fc4729f3f418b304cb57789f1bed2a78c575407ab8a23f53cb4d3"
+checksum = "77be66445c4eeebb934a7340f227bfe7b338173d3f8c00a60a5a58005c9faecf"
 dependencies = [
  "lazy_static",
  "matchers",
@@ -1840,9 +1853,9 @@ dependencies = [
 
 [[package]]
 name = "version_check"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "vfs"
diff --git a/crates/hir_def/Cargo.toml b/crates/hir_def/Cargo.toml
index 0fca025e18..4d912178e3 100644
--- a/crates/hir_def/Cargo.toml
+++ b/crates/hir_def/Cargo.toml
@@ -11,7 +11,9 @@ doctest = false
 
 [dependencies]
 cov-mark = "2.0.0-pre.1"
-dashmap = { version = "4.0.2", features = ["raw-api"] }
+dashmap = { version = "5.0", features = ["raw-api"] }
+lock_api = "0.4"
+parking_lot = "0.11"
 tracing = "0.1"
 once_cell = "1.3.1"
 rustc-hash = "1.1.0"
diff --git a/crates/hir_def/src/intern.rs b/crates/hir_def/src/intern.rs
index 79ba970e7b..f5a4f5ec4e 100644
--- a/crates/hir_def/src/intern.rs
+++ b/crates/hir_def/src/intern.rs
@@ -10,15 +10,20 @@ use std::{
     sync::Arc,
 };
 
-use dashmap::{lock::RwLockWriteGuard, DashMap, SharedValue};
+use dashmap::{DashMap, SharedValue};
+use lock_api::RwLockWriteGuard;
 use once_cell::sync::OnceCell;
+use parking_lot::RawRwLock;
 use rustc_hash::FxHasher;
 
 use crate::generics::GenericParams;
 
 type InternMap<T> = DashMap<Arc<T>, (), BuildHasherDefault<FxHasher>>;
-type Guard<T> =
-    RwLockWriteGuard<'static, HashMap<Arc<T>, SharedValue<()>, BuildHasherDefault<FxHasher>>>;
+type Guard<T> = RwLockWriteGuard<
+    'static,
+    RawRwLock,
+    HashMap<Arc<T>, SharedValue<()>, BuildHasherDefault<FxHasher>>,
+>;
 
 pub struct Interned<T: Internable + ?Sized> {
     arc: Arc<T>,