diff --git a/Cargo.lock b/Cargo.lock
index 3d36e6b..4283c37 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,7 +179,7 @@ version = "0.0.1"
 dependencies = [
  "aarch64-cpu",
  "bit_field",
- "bitflags 1.3.2",
+ "bitflags 2.3.3",
  "cfg-if",
  "machine",
  "seahash",
@@ -243,9 +243,9 @@ checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
 [[package]]
 name = "crossterm"
-version = "0.25.0"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e64e6c0fbe2c17357405f7c758c1ef960fce08bdfb2c03d88d2a18d7e09c4b67"
+checksum = "a84cda67535339806297f1b331d6dd6320470d2a0fe65381e79ee9e156dd3d13"
 dependencies = [
  "bitflags 1.3.2",
  "crossterm_winapi",
@@ -281,9 +281,9 @@ checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
 
 [[package]]
 name = "errno"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+checksum = "6b30f669a7961ef1631673d2766cc92f52d64f7ef354d4fe0ddfd30ed52f0f4f"
 dependencies = [
  "errno-dragonfly",
  "libc",
@@ -376,7 +376,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -446,9 +446,9 @@ checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09fc20d2ca12cb9f044c93e3bd6d32d523e6e2ec3db4f7b2939cd99026ecd3f0"
+checksum = "57bcfdad1b858c2db7c38303a6d2ad4dfaf5eb53dfeb0910128b2c26d6158503"
 
 [[package]]
 name = "lock_api"
@@ -490,7 +490,7 @@ version = "0.0.1"
 dependencies = [
  "aarch64-cpu",
  "bit_field",
- "bitflags 1.3.2",
+ "bitflags 2.3.3",
  "buddy-alloc",
  "cfg-if",
  "once_cell",
@@ -592,7 +592,7 @@ version = "0.0.1"
 dependencies = [
  "aarch64-cpu",
  "bit_field",
- "bitflags 1.3.2",
+ "bitflags 2.3.3",
  "cfg-if",
  "machine",
  "snafu",
@@ -708,9 +708,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39354c10dd07468c2e73926b23bb9c2caca74c5501e38a35da70406f1d923310"
+checksum = "b7b6d6190b7594385f61bd3911cd1be99dfddcfc365a4160cc2ab5bff4aed294"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -871,9 +871,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.27"
+version = "2.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b60f673f44a8255b9c8c657daf66a596d435f2da81a555b06dc644d080ba45e0"
+checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -914,7 +914,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.27",
+ "syn 2.0.28",
 ]
 
 [[package]]
diff --git a/bin/chainboot/Cargo.toml b/bin/chainboot/Cargo.toml
index 33453eb..b954dee 100644
--- a/bin/chainboot/Cargo.toml
+++ b/bin/chainboot/Cargo.toml
@@ -25,12 +25,12 @@ rpi4 = ["machine/rpi4"]
 
 [dependencies]
 machine = { path = "../../machine" }
-aarch64-cpu = "9.0"
+aarch64-cpu = "9.3"
 tock-registers = "0.8.1"
 ux = { version = "0.1", default-features = false }
 usize_conversions = "0.2"
 bit_field = "0.10"
-bitflags = "1.3"
+bitflags = "2.3"
 cfg-if = "1.0"
 snafu = { version = "0.7", default-features = false }
 seahash = "4.1"
diff --git a/bin/chainofcommand/Cargo.toml b/bin/chainofcommand/Cargo.toml
index c40f77e..da162d3 100644
--- a/bin/chainofcommand/Cargo.toml
+++ b/bin/chainofcommand/Cargo.toml
@@ -12,16 +12,16 @@ edition = "2021"
 maintenance = { status = "experimental" }
 
 [dependencies]
-clap = "4.0.0"
+clap = "4.3.19"
 seahash = "4.1"
 anyhow = "1.0"
 fehler = "1.0"
-crossterm = { version = "0.25", features = ["event-stream"] }
+crossterm = { version = "0.26", features = ["event-stream"] }
 futures = "0.3"
 futures-util = { version = "0.3", features = ["io"] }
-tokio = { version = "1.21", features = ["full"] }
+tokio = { version = "1.29", features = ["full"] }
 tokio-util = { version = "0.7", features = ["io", "codec", "io"] }
 tokio-stream = { version = "0.1" }
 tokio-serial = "5.4"
 defer = "0.1"
-bytes = "1.2"
+bytes = "1.4"
diff --git a/machine/Cargo.toml b/machine/Cargo.toml
index 44f1a95..26703d2 100644
--- a/machine/Cargo.toml
+++ b/machine/Cargo.toml
@@ -29,12 +29,12 @@ rpi4 = []
 
 [dependencies]
 qemu-exit = "3.0"
-aarch64-cpu = "9.0"
+aarch64-cpu = "9.3"
 tock-registers = "0.8.1"
 ux = { version = "0.1", default-features = false }
 usize_conversions = "0.2"
 bit_field = "0.10"
-bitflags = "1.3"
+bitflags = "2.3"
 cfg-if = "1.0"
 snafu = { version = "0.7", default-features = false, features = ["unstable-core-error"] }
 buddy-alloc = { git = "https://github.com/metta-systems/buddy-alloc", version = "0.6.0", branch = "feature/allocator-api" }
diff --git a/nucleus/Cargo.toml b/nucleus/Cargo.toml
index feb6665..677492e 100644
--- a/nucleus/Cargo.toml
+++ b/nucleus/Cargo.toml
@@ -28,12 +28,12 @@ rpi4 = ["machine/rpi4"]
 
 [dependencies]
 machine = { path = "../machine" }
-aarch64-cpu = "9.0"
+aarch64-cpu = "9.3"
 tock-registers = "0.8.1"
 ux = { version = "0.1", default-features = false }
 usize_conversions = "0.2"
 bit_field = "0.10"
-bitflags = "1.3"
+bitflags = "2.3"
 cfg-if = "1.0"
 snafu = { version = "0.7", default-features = false, features = ["unstable-core-error"] }