diff --git a/Cargo.lock b/Cargo.lock
index a90d47d0..c5b1f33a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -363,9 +363,9 @@ checksum = "f9d642685b028806386b2b6e75685faadd3eb65a85fff7df711ce18446a422da"
 
 [[package]]
 name = "memmap2"
-version = "0.5.10"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83faa42c0a078c393f6b29d5db232d8be22776a891f8f56e5284faee4a20b327"
+checksum = "fe751422e4a8caa417e13c3ea66452215d7d63e19e604f4980461212f3ae1322"
 dependencies = [
  "libc",
 ]
diff --git a/fontique/Cargo.toml b/fontique/Cargo.toml
index 51953c80..2ae84e23 100644
--- a/fontique/Cargo.toml
+++ b/fontique/Cargo.toml
@@ -23,7 +23,7 @@ system = ["std"]
 skrifa = { workspace = true }
 peniko = { workspace = true }
 smallvec = "1.13.2"
-memmap2 = { version = "0.5.10", optional = true }
+memmap2 = { version = "0.9.4", optional = true }
 unicode-script = { version = "0.5.6", optional = true }
 core_maths = { version = "0.1.0", optional = true }
 icu_properties = "1.4.0"