diff --git a/Cargo.lock b/Cargo.lock
index a8e138180c..b978e33aff 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1985,6 +1985,15 @@ dependencies = [
  "winapi 0.3.8",
 ]
 
+[[package]]
+name = "memmap2"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b70ca2a6103ac8b665dc150b142ef0e4e89df640c9e6cf295d189c3caebe5a"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.5.4"
@@ -4387,7 +4396,7 @@ dependencies = [
  "libc",
  "libloading 0.6.2",
  "log 0.4.8",
- "memmap",
+ "memmap2",
  "num-derive 0.3.0",
  "num-traits",
  "num_cpus",
@@ -4481,7 +4490,7 @@ dependencies = [
  "itertools 0.9.0",
  "libsecp256k1",
  "log 0.4.8",
- "memmap",
+ "memmap2",
  "num-derive 0.3.0",
  "num-traits",
  "pbkdf2",
diff --git a/programs/bpf/Cargo.lock b/programs/bpf/Cargo.lock
index cf01afc960..2608d02894 100644
--- a/programs/bpf/Cargo.lock
+++ b/programs/bpf/Cargo.lock
@@ -1039,13 +1039,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400"
 
 [[package]]
-name = "memmap"
-version = "0.7.0"
+name = "memmap2"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6585fd95e7bb50d6cc31e20d4cf9afb4e2ba16c5846fc76793f11218da9c475b"
+checksum = "d9b70ca2a6103ac8b665dc150b142ef0e4e89df640c9e6cf295d189c3caebe5a"
 dependencies = [
  "libc",
- "winapi 0.3.8",
 ]
 
 [[package]]
@@ -2060,7 +2059,7 @@ dependencies = [
  "libc",
  "libloading",
  "log",
- "memmap",
+ "memmap2",
  "num-derive 0.3.0",
  "num-traits",
  "num_cpus",
@@ -2106,7 +2105,7 @@ dependencies = [
  "itertools",
  "libsecp256k1",
  "log",
- "memmap",
+ "memmap2",
  "num-derive 0.3.0",
  "num-traits",
  "pbkdf2",
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 801733b0af..04da8778c6 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -24,7 +24,7 @@ lazy_static = "1.4.0"
 libc = "0.2.72"
 libloading = "0.6.2"
 log = "0.4.8"
-memmap = "0.7.0"
+memmap2 = "0.1.0"
 num-derive = { version = "0.3" }
 num-traits = { version = "0.2" }
 num_cpus = "1.13.0"
diff --git a/runtime/src/append_vec.rs b/runtime/src/append_vec.rs
index 2a21023cbc..d6cb97e11a 100644
--- a/runtime/src/append_vec.rs
+++ b/runtime/src/append_vec.rs
@@ -1,5 +1,5 @@
 use log::*;
-use memmap::MmapMut;
+use memmap2::MmapMut;
 use serde::{Deserialize, Serialize};
 use solana_sdk::{
     account::Account,
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 3b061e5814..a0c8ed5ac9 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -20,7 +20,7 @@ default = [
     "chrono",
     "curve25519-dalek",
     "generic-array",
-    "memmap",
+    "memmap2",
     "rand",
     "rand_chacha",
     "serde_json",
@@ -45,7 +45,7 @@ hex = "0.4.2"
 hmac = "0.7.0"
 itertools = { version = "0.9.0" }
 log = { version = "0.4.8" }
-memmap = { version = "0.7.0", optional = true }
+memmap2 = { version = "0.1.0", optional = true }
 num-derive = { version = "0.3" }
 num-traits = { version = "0.2" }
 pbkdf2 = { version = "0.3.0", default-features = false }
diff --git a/sdk/src/abi_example.rs b/sdk/src/abi_example.rs
index 81692d2388..aeebd29d58 100644
--- a/sdk/src/abi_example.rs
+++ b/sdk/src/abi_example.rs
@@ -414,9 +414,9 @@ impl<T: std::cmp::Ord + AbiExample> AbiExample for BTreeSet<T> {
 }
 
 #[cfg(not(feature = "program"))]
-impl AbiExample for memmap::MmapMut {
+impl AbiExample for memmap2::MmapMut {
     fn example() -> Self {
-        memmap::MmapMut::map_anon(1).expect("failed to map the data file")
+        memmap2::MmapMut::map_anon(1).expect("failed to map the data file")
     }
 }
 
diff --git a/sdk/src/genesis_config.rs b/sdk/src/genesis_config.rs
index 58631b408f..47ba24f087 100644
--- a/sdk/src/genesis_config.rs
+++ b/sdk/src/genesis_config.rs
@@ -18,7 +18,7 @@ use crate::{
 };
 use bincode::{deserialize, serialize};
 use chrono::{TimeZone, Utc};
-use memmap::Mmap;
+use memmap2::Mmap;
 use std::{
     collections::BTreeMap,
     fmt,