diff --git a/Cargo.lock b/Cargo.lock
index dc23bbf2b9..37aab35c54 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -704,9 +704,9 @@ dependencies = [
 
 [[package]]
 name = "memmap2"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43a5a03cefb0d953ec0be133036f14e109412fa594edc2f77227249db66cc3ed"
+checksum = "deaba38d7abf1d4cca21cc89e932e542ba2b9258664d2a9ef0e61512039c9375"
 dependencies = [
  "libc",
 ]
diff --git a/src/core/Cargo.toml b/src/core/Cargo.toml
index 62853e80e5..48dd18dcf3 100644
--- a/src/core/Cargo.toml
+++ b/src/core/Cargo.toml
@@ -49,7 +49,7 @@ typed-builder = "0.14.0"
 twox-hash = "1.6.0"
 vec-collections = "0.3.4"
 piz = "0.5.0"
-memmap2 = "0.8.0"
+memmap2 = "0.9.0"
 ouroboros = "0.18.0"
 
 [dev-dependencies]