diff --git a/server/Cargo.lock b/server/Cargo.lock
index a425f42..60e3fea 100644
--- a/server/Cargo.lock
+++ b/server/Cargo.lock
@@ -1081,8 +1081,7 @@ checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
 [[package]]
 name = "libmimalloc-sys"
 version = "0.1.41"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b20daca3a4ac14dbdc753c5e90fc7b490a48a9131daed3c9a9ced7b2defd37b"
+source = "git+https://github.com/scottlamb/mimalloc_rust?branch=musl-fix#39596674eef4cdc69fb102c20f6881466a9fadd3"
 dependencies = [
  "cc",
  "cty",
diff --git a/server/base/Cargo.toml b/server/base/Cargo.toml
index 3d1f2f7..3c926b0 100644
--- a/server/base/Cargo.toml
+++ b/server/base/Cargo.toml
@@ -21,7 +21,7 @@ coded = { git = "https://github.com/scottlamb/coded", rev = "2c97994974a73243d5d
 futures = "0.3"
 jiff = { workspace = true }
 libc = "0.2"
-libmimalloc-sys = { version = "0.1.41", features = [
+libmimalloc-sys = { git = "https://github.com/scottlamb/mimalloc_rust", branch = "musl-fix", features = [
     "override",
     "extended",
 ], optional = true }