diff --git a/Cargo.lock b/Cargo.lock
index 2f51d21..cbba3d1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,12 +2,6 @@
 # It is not intended for manual editing.
 version = 4
 
-[[package]]
-name = "allocator-api2"
-version = "0.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c6cb57a04249c6480766f7f7cef5467412af1490f8d1e243141daddada3264f"
-
 [[package]]
 name = "atomicwrites"
 version = "0.4.4"
@@ -120,12 +114,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34aa73646ffb006b8f5147f3dc182bd4bcb190227ce861fc4a4844bf8e3cb2c0"
 
-[[package]]
-name = "equivalent"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
-
 [[package]]
 name = "errno"
 version = "0.3.11"
@@ -154,12 +142,6 @@ version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
-[[package]]
-name = "foldhash"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
-
 [[package]]
 name = "getrandom"
 version = "0.3.3"
@@ -184,17 +166,6 @@ dependencies = [
  "rand_core",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.16.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
-dependencies = [
- "allocator-api2",
- "equivalent",
- "foldhash",
-]
-
 [[package]]
 name = "hybrid-array"
 version = "0.4.14"
@@ -325,11 +296,10 @@ checksum = "63b8176103e19a2643978565ca18b50549f6101881c443590420e4dc998a3c69"
 
 [[package]]
 name = "regress"
-version = "0.11.1"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "158a764437582235e3501f683b93a0a6f8d825d04a789dbe5ed30b8799b8908a"
+checksum = "32eef8b209c3c1c15dbad02c1f30f9539f00dc7253e0cbcdaae442a50a09d7c1"
 dependencies = [
- "hashbrown",
  "memchr",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 3a851c5..5a83f9c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,4 +31,4 @@ rand = { version = "0.10.2", optional = true }
 
 [dev-dependencies]
 expectorate = "1.2.0"
-regress = "0.11.1"
+regress = "0.12.0"