diff --git a/Cargo.lock b/Cargo.lock
index a454564..ace7bf9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -72,7 +72,7 @@ dependencies = [
  "ahash",
  "anyhow",
  "arc-swap",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.0",
  "hex",
  "hwloc",
  "indexmap-amortized",
@@ -124,7 +124,7 @@ dependencies = [
  "aquatic_http_protocol",
  "futures-lite",
  "glommio 0.6.0 (git+https://github.com/DataDog/glommio.git?rev=4e6b14772da2f4325271fbcf12d24cf91ed466e5)",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.0",
  "log",
  "mimalloc",
  "quickcheck",
@@ -211,7 +211,7 @@ dependencies = [
  "aquatic_cli_helpers",
  "aquatic_common",
  "aquatic_udp_protocol",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.0",
  "mimalloc",
  "mio",
  "quickcheck",
@@ -249,7 +249,7 @@ dependencies = [
  "futures-lite",
  "futures-rustls",
  "glommio 0.6.0 (git+https://github.com/DataDog/glommio.git?rev=2efe2f2a08f54394a435b674e8e0125057cbff03)",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.0",
  "histogram",
  "log",
  "mimalloc",
@@ -300,7 +300,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "criterion",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.0",
  "quickcheck",
  "quickcheck_macros",
  "serde",
@@ -1017,6 +1017,15 @@ name = "hashbrown"
 version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+dependencies = [
+ "ahash",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c21d40587b92fa6a6c6e3c1bdbf87d75511db5672f9c93175574b3a00df1758"
 dependencies = [
  "ahash",
  "serde",
diff --git a/aquatic_common/Cargo.toml b/aquatic_common/Cargo.toml
index a6137aa..0fbcfca 100644
--- a/aquatic_common/Cargo.toml
+++ b/aquatic_common/Cargo.toml
@@ -17,7 +17,7 @@ cpu-pinning = ["hwloc", "libc"]
 ahash = "0.7"
 anyhow = "1"
 arc-swap = "1"
-hashbrown = "0.11"
+hashbrown = "0.12"
 hex = "0.4"
 indexmap-amortized = "1"
 log = "0.4"
diff --git a/aquatic_http_load_test/Cargo.toml b/aquatic_http_load_test/Cargo.toml
index 78991d1..6de3ada 100644
--- a/aquatic_http_load_test/Cargo.toml
+++ b/aquatic_http_load_test/Cargo.toml
@@ -18,7 +18,7 @@ aquatic_cli_helpers = "0.1.0"
 aquatic_common = "0.1.0"
 aquatic_http_protocol = "0.1.0"
 futures-lite = "1"
-hashbrown = "0.11"
+hashbrown = "0.12"
 glommio = { git = "https://github.com/DataDog/glommio.git", rev = "4e6b14772da2f4325271fbcf12d24cf91ed466e5" }
 log = "0.4"
 mimalloc = { version = "0.1", default-features = false }
diff --git a/aquatic_udp_load_test/Cargo.toml b/aquatic_udp_load_test/Cargo.toml
index 17eb888..b387a94 100644
--- a/aquatic_udp_load_test/Cargo.toml
+++ b/aquatic_udp_load_test/Cargo.toml
@@ -17,7 +17,7 @@ anyhow = "1"
 aquatic_cli_helpers = "0.1.0"
 aquatic_common = "0.1.0"
 aquatic_udp_protocol = "0.1.0"
-hashbrown = "0.11"
+hashbrown = "0.12"
 mimalloc = { version = "0.1", default-features = false }
 mio = { version = "0.8", features = ["net", "os-poll"] }
 rand = { version = "0.8", features = ["small_rng"] }
diff --git a/aquatic_ws/Cargo.toml b/aquatic_ws/Cargo.toml
index 885e841..97cef8f 100644
--- a/aquatic_ws/Cargo.toml
+++ b/aquatic_ws/Cargo.toml
@@ -26,7 +26,7 @@ aquatic_common = "0.1.0"
 aquatic_ws_protocol = "0.1.0"
 cfg-if = "1"
 either = "1"
-hashbrown = { version = "0.11", features = ["serde"] }
+hashbrown = { version = "0.12", features = ["serde"] }
 log = "0.4"
 mimalloc = { version = "0.1", default-features = false }
 privdrop = "0.5"
diff --git a/aquatic_ws_protocol/Cargo.toml b/aquatic_ws_protocol/Cargo.toml
index 26f0ea7..3139578 100644
--- a/aquatic_ws_protocol/Cargo.toml
+++ b/aquatic_ws_protocol/Cargo.toml
@@ -18,7 +18,7 @@ harness = false
 
 [dependencies]
 anyhow = "1"
-hashbrown = { version = "0.11", features = ["serde"] }
+hashbrown = { version = "0.12", features = ["serde"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 simd-json = { version = "0.4", features = ["allow-non-simd"] }