diff --git a/changelog.md b/changelog.md
index 60b5975..5323a24 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 2026-02-25 - 25.8.1 - fix(allocator)
+switch global allocator from tikv-jemallocator to mimalloc
+
+- Replaced tikv-jemallocator with mimalloc in rust/Cargo.toml workspace dependencies.
+- Updated rust/crates/rustproxy/Cargo.toml to use mimalloc as a workspace dependency.
+- Updated rust/Cargo.lock: added mimalloc and libmimalloc-sys entries and removed tikv-jemallocator and tikv-jemalloc-sys entries.
+- Changed the global allocator in crates/rustproxy/src/main.rs from tikv_jemallocator::Jemalloc to mimalloc::MiMalloc.
+- Impact: runtime memory allocator is changed which may affect memory usage and performance; no public API changes but recommend testing memory/performance in deployments.
+
 ## 2026-02-24 - 25.8.0 - feat(rustproxy)
 use tikv-jemallocator as the global allocator to reduce glibc fragmentation and slow RSS growth; add allocator dependency and enable it in rustproxy, update lockfile, and run tsrust before tests
 
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index a9fe2f8..c93b1ca 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -612,6 +612,16 @@ version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "667f4fec20f29dfc6bc7357c582d91796c169ad7e2fce709468aefeb2c099870"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.14"
@@ -642,6 +652,15 @@ version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
 
+[[package]]
+name = "mimalloc"
+version = "0.1.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1ee66a4b64c74f4ef288bcbb9192ad9c3feaad75193129ac8509af543894fd8"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mio"
 version = "1.1.1"
@@ -924,6 +943,7 @@ dependencies = [
  "http-body-util",
  "hyper",
  "hyper-util",
+ "mimalloc",
  "rcgen",
  "rustls",
  "rustproxy-config",
@@ -936,7 +956,6 @@ dependencies = [
  "rustproxy-tls",
  "serde",
  "serde_json",
- "tikv-jemallocator",
  "tokio",
  "tokio-rustls",
  "tokio-util",
@@ -1299,26 +1318,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "tikv-jemalloc-sys"
-version = "0.6.1+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd8aa5b2ab86a2cefa406d889139c162cbb230092f7d1d7cbc1716405d852a3b"
-dependencies = [
- "cc",
- "libc",
-]
-
-[[package]]
-name = "tikv-jemallocator"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0359b4327f954e0567e69fb191cf1436617748813819c94b8cd4a431422d053a"
-dependencies = [
- "libc",
- "tikv-jemalloc-sys",
-]
-
 [[package]]
 name = "time"
 version = "0.3.47"
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 54f4715..cfb1842 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -91,8 +91,8 @@ libc = "0.2"
 # Socket-level options (keepalive, etc.)
 socket2 = { version = "0.5", features = ["all"] }
 
-# jemalloc allocator (prevents glibc fragmentation / slow RSS growth)
-tikv-jemallocator = "0.6"
+# mimalloc allocator (prevents glibc fragmentation / slow RSS growth)
+mimalloc = "0.1"
 
 # Internal crates
 rustproxy-config = { path = "crates/rustproxy-config" }
diff --git a/rust/crates/rustproxy/Cargo.toml b/rust/crates/rustproxy/Cargo.toml
index d3bb8c3..7a5b09a 100644
--- a/rust/crates/rustproxy/Cargo.toml
+++ b/rust/crates/rustproxy/Cargo.toml
@@ -39,7 +39,7 @@ hyper = { workspace = true }
 hyper-util = { workspace = true }
 http-body-util = { workspace = true }
 bytes = { workspace = true }
-tikv-jemallocator = { workspace = true }
+mimalloc = { workspace = true }
 
 [dev-dependencies]
 rcgen = { workspace = true }
diff --git a/rust/crates/rustproxy/src/main.rs b/rust/crates/rustproxy/src/main.rs
index d59778b..d3caf63 100644
--- a/rust/crates/rustproxy/src/main.rs
+++ b/rust/crates/rustproxy/src/main.rs
@@ -1,5 +1,5 @@
 #[global_allocator]
-static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
+static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
 
 use clap::Parser;
 use tracing_subscriber::EnvFilter;
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 8c8f318..cbfc58e 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '25.8.0',
+  version: '25.8.1',
   description: 'A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.'
 }