diff --git a/Cargo.lock b/Cargo.lock
index f3dd484a8..25244179f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2439,9 +2439,9 @@ dependencies = [
 
 [[package]]
 name = "memmap2"
-version = "0.2.3"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "723e3ebdcdc5c023db1df315364573789f8857c11b631a2fdfad7c00f5c046b4"
+checksum = "20ff203f7bdc401350b1dbaa0355135777d25f41c0bbc601851bbd6cf61e8ff5"
 dependencies = [
  "libc",
 ]
@@ -4732,7 +4732,7 @@ dependencies = [
  "bv",
  "generic-array 0.14.4",
  "log 0.4.14",
- "memmap2 0.2.3",
+ "memmap2 0.3.0",
  "rustc_version 0.4.0",
  "serde",
  "serde_derive",
@@ -5397,7 +5397,7 @@ dependencies = [
  "libc",
  "libloading",
  "log 0.4.14",
- "memmap2 0.2.3",
+ "memmap2 0.3.0",
  "num-derive",
  "num-traits",
  "num_cpus",
@@ -5457,7 +5457,7 @@ dependencies = [
  "lazy_static",
  "libsecp256k1",
  "log 0.4.14",
- "memmap2 0.2.3",
+ "memmap2 0.3.0",
  "num-derive",
  "num-traits",
  "pbkdf2 0.8.0",
diff --git a/frozen-abi/Cargo.toml b/frozen-abi/Cargo.toml
index 8c5bdf188..32cec522a 100644
--- a/frozen-abi/Cargo.toml
+++ b/frozen-abi/Cargo.toml
@@ -22,7 +22,7 @@ thiserror = "1.0"
 [target.'cfg(not(target_arch = "bpf"))'.dependencies]
 solana-logger = { path = "../logger", version = "=1.8.0" }
 generic-array = { version = "0.14.4", default-features = false, features = ["serde", "more_lengths"]}
-memmap2 = "0.2.3"
+memmap2 = "0.3.0"
 
 [build-dependencies]
 rustc_version = "0.4"
diff --git a/programs/bpf/Cargo.lock b/programs/bpf/Cargo.lock
index afca9619a..f9dbcc3f2 100644
--- a/programs/bpf/Cargo.lock
+++ b/programs/bpf/Cargo.lock
@@ -1591,9 +1591,9 @@ dependencies = [
 
 [[package]]
 name = "memmap2"
-version = "0.2.3"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "723e3ebdcdc5c023db1df315364573789f8857c11b631a2fdfad7c00f5c046b4"
+checksum = "20ff203f7bdc401350b1dbaa0355135777d25f41c0bbc601851bbd6cf61e8ff5"
 dependencies = [
  "libc",
 ]
@@ -3253,7 +3253,7 @@ dependencies = [
  "bv",
  "generic-array 0.14.4",
  "log",
- "memmap2 0.2.3",
+ "memmap2 0.3.0",
  "rustc_version 0.4.0",
  "serde",
  "serde_derive",
@@ -3483,7 +3483,7 @@ dependencies = [
  "libc",
  "libloading",
  "log",
- "memmap2 0.2.3",
+ "memmap2 0.3.0",
  "num-derive",
  "num-traits",
  "num_cpus",
@@ -3533,7 +3533,7 @@ dependencies = [
  "lazy_static",
  "libsecp256k1",
  "log",
- "memmap2 0.2.3",
+ "memmap2 0.3.0",
  "num-derive",
  "num-traits",
  "pbkdf2 0.8.0",
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index eeccc0fb0..e494fcab0 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -26,7 +26,7 @@ lazy_static = "1.4.0"
 libc = "0.2.97"
 libloading = "0.7.0"
 log = "0.4.14"
-memmap2 = "0.2.3"
+memmap2 = "0.3.0"
 num-derive = { version = "0.3" }
 num-traits = { version = "0.2" }
 num_cpus = "1.13.0"
diff --git a/sdk/Cargo.toml b/sdk/Cargo.toml
index 0aac9b55a..58b3426f0 100644
--- a/sdk/Cargo.toml
+++ b/sdk/Cargo.toml
@@ -56,7 +56,7 @@ itertools =  "0.10.1"
 lazy_static = "1.4.0"
 libsecp256k1 = { version = "0.5.0", optional = true }
 log = "0.4.14"
-memmap2 = { version = "0.2.3", optional = true }
+memmap2 = { version = "0.3.0", optional = true }
 num-derive = "0.3"
 num-traits = "0.2"
 pbkdf2 = { version = "0.8.0", default-features = false }