diff --git a/Cargo.lock b/Cargo.lock
index 0d676fa88a..7032de0cf4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2100,6 +2100,15 @@ 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"
@@ -4136,7 +4145,7 @@ dependencies = [
  "bv",
  "generic-array 0.14.3",
  "log 0.4.8",
- "memmap",
+ "memmap2",
  "rustc_version",
  "serde",
  "serde_derive",
@@ -4690,7 +4699,7 @@ dependencies = [
  "libc",
  "libloading 0.6.2",
  "log 0.4.8",
- "memmap",
+ "memmap2",
  "num-derive",
  "num-traits",
  "num_cpus",
@@ -4748,7 +4757,7 @@ dependencies = [
  "lazy_static",
  "libsecp256k1",
  "log 0.4.8",
- "memmap",
+ "memmap2",
  "num-derive",
  "num-traits",
  "pbkdf2",
diff --git a/frozen-abi/Cargo.toml b/frozen-abi/Cargo.toml
index c74cd97271..be581c1a35 100644
--- a/frozen-abi/Cargo.toml
+++ b/frozen-abi/Cargo.toml
@@ -21,7 +21,7 @@ thiserror = "1.0"
 [target.'cfg(not(target_arch = "bpf"))'.dependencies]
 solana-logger = { path = "../logger", version = "1.4.16" }
 generic-array = { version = "0.14.3", default-features = false, features = ["serde", "more_lengths"]}
-memmap = "0.7.0"
+memmap2 = "0.1.0"
 
 [build-dependencies]
 rustc_version = "0.2"
diff --git a/frozen-abi/src/abi_example.rs b/frozen-abi/src/abi_example.rs
index 2d24d05f23..fdb858aa5c 100644
--- a/frozen-abi/src/abi_example.rs
+++ b/frozen-abi/src/abi_example.rs
@@ -415,9 +415,9 @@ impl<T: std::cmp::Ord + AbiExample> AbiExample for BTreeSet<T> {
 }
 
 #[cfg(not(target_arch = "bpf"))]
-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/programs/bpf/Cargo.lock b/programs/bpf/Cargo.lock
index 982eefff57..f95a30339c 100644
--- a/programs/bpf/Cargo.lock
+++ b/programs/bpf/Cargo.lock
@@ -1086,13 +1086,12 @@ 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]]
@@ -2130,7 +2129,7 @@ dependencies = [
  "bv",
  "generic-array 0.14.3",
  "log",
- "memmap",
+ "memmap2",
  "rustc_version",
  "serde",
  "serde_derive",
@@ -2239,7 +2238,7 @@ dependencies = [
  "libc",
  "libloading",
  "log",
- "memmap",
+ "memmap2",
  "num-derive 0.3.0",
  "num-traits",
  "num_cpus",
@@ -2287,7 +2286,7 @@ dependencies = [
  "lazy_static",
  "libsecp256k1",
  "log",
- "memmap",
+ "memmap2",
  "num-derive 0.3.0",
  "num-traits",
  "pbkdf2",
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 7f59ab3f5a..47b565f55c 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -25,7 +25,7 @@ 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 ef258a34b4..2a022168c1 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -22,7 +22,7 @@ full = [
     "byteorder",
     "chrono",
     "generic-array",
-    "memmap",
+    "memmap2",
     "rand",
     "rand_chacha",
     "serde_json",
@@ -48,7 +48,7 @@ hmac = "0.7.0"
 itertools =  "0.9.0"
 lazy_static = "1.4.0"
 log = "0.4.8"
-memmap = { version = "0.7.0", optional = true }
+memmap2 = { version = "0.1.0", optional = true }
 num-derive = "0.3"
 num-traits = "0.2"
 pbkdf2 = { version = "0.3.0", default-features = false }
diff --git a/sdk/src/genesis_config.rs b/sdk/src/genesis_config.rs
index 17dbb66829..078d302113 100644
--- a/sdk/src/genesis_config.rs
+++ b/sdk/src/genesis_config.rs
@@ -20,7 +20,7 @@ use crate::{
 };
 use bincode::{deserialize, serialize};
 use chrono::{TimeZone, Utc};
-use memmap::Mmap;
+use memmap2::Mmap;
 use std::{
     collections::BTreeMap,
     fmt,