diff --git a/Cargo.lock b/Cargo.lock
index 2e9c3e63..80d7dc1a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -127,7 +127,7 @@ dependencies = [
  "serde",
  "trussed",
  "trussed-auth",
- "trussed-rsa-alloc 0.1.0 (git+https://github.com/trussed-dev/trussed-rsa-backend.git?rev=2f51478f0861ff8db19fdd5290f023ab6f4c2fb9)",
+ "trussed-rsa-alloc",
  "trussed-se050-backend",
  "trussed-staging",
  "trussed-usbip",
@@ -451,17 +451,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
-[[package]]
-name = "chacha20"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f08493fa7707effc63254c66c6ea908675912493cd67952eda23c09fae2610b1"
-dependencies = [
- "cfg-if",
- "cpufeatures",
- "rand_core",
-]
-
 [[package]]
 name = "chacha20"
 version = "0.9.1"
@@ -480,7 +469,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "10cd79432192d1c0f4e1a0fef9527696cc039165d729fb41b3f4f4f354c2dc35"
 dependencies = [
  "aead",
- "chacha20 0.9.1",
+ "chacha20",
  "cipher 0.4.4",
  "poly1305",
  "zeroize",
@@ -689,7 +678,7 @@ dependencies = [
  "cortex-m",
  "cortex-m-rtic-macros",
  "heapless 0.7.16",
- "rtic-core 1.0.0",
+ "rtic-core",
  "rtic-monotonic",
  "version_check",
 ]
@@ -703,7 +692,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "rtic-syntax 1.0.3",
+ "rtic-syntax",
  "syn 1.0.109",
 ]
 
@@ -1124,7 +1113,6 @@ dependencies = [
  "apps",
  "cargo-lock",
  "cfg-if",
- "chacha20 0.7.3",
  "cortex-m",
  "cortex-m-rtic",
  "cortex-m-semihosting",
@@ -1148,6 +1136,7 @@ dependencies = [
  "nrf52840-hal",
  "nrf52840-pac",
  "rand",
+ "rand_chacha",
  "rand_core",
  "ref-swap",
  "rtt-target",
@@ -1912,7 +1901,6 @@ dependencies = [
  "generic-array 0.14.7",
  "littlefs2",
  "lpc55-pac",
- "lpc55-rtic",
  "nb 1.1.0",
  "rand_core",
  "usb-device",
@@ -1931,32 +1919,6 @@ dependencies = [
  "vcell",
 ]
 
-[[package]]
-name = "lpc55-rtic"
-version = "0.5.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4472b3ed70fa24afef24fa55fd0ebd77fbc781a4c649bb48ca6b1b9fa6b90073"
-dependencies = [
- "cortex-m",
- "cortex-m-rt",
- "heapless 0.6.1",
- "lpc55-rtic-macros",
- "rtic-core 0.3.1",
- "version_check",
-]
-
-[[package]]
-name = "lpc55-rtic-macros"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c4958d6458bf70ef0789830bb2ed28e9a8d95d500e7cad2b1e9bd3a3169c680"
-dependencies = [
- "proc-macro2",
- "quote",
- "rtic-syntax 0.4.0",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "matchers"
 version = "0.1.0"
@@ -2252,7 +2214,7 @@ dependencies = [
  "subtle",
  "trussed",
  "trussed-auth",
- "trussed-rsa-alloc 0.1.0 (git+https://github.com/trussed-dev/trussed-rsa-backend.git?rev=2f51478f0861ff8db19fdd5290f023ab6f4c2fb9)",
+ "trussed-rsa-alloc",
  "trussed-staging",
 ]
 
@@ -2650,12 +2612,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "rtic-core"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bd58a6949de8ff797a346a28d9f13f7b8f54fa61bb5e3cb0985a4efb497a5ef"
-
 [[package]]
 name = "rtic-core"
 version = "1.0.0"
@@ -2668,17 +2624,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb8b0b822d1a366470b9cea83a1d4e788392db763539dc4ba022bcc787fece82"
 
-[[package]]
-name = "rtic-syntax"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8152fcaa845720d61e6cc570548b89144c2c307f18a480bbd97e55e9f6eeff04"
-dependencies = [
- "indexmap",
- "proc-macro2",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "rtic-syntax"
 version = "1.0.3"
@@ -3351,7 +3296,7 @@ dependencies = [
  "cbc",
  "cbor-smol",
  "cfg-if",
- "chacha20 0.9.1",
+ "chacha20",
  "chacha20poly1305",
  "cosey 0.3.0",
  "delog",
@@ -3394,20 +3339,6 @@ dependencies = [
  "trussed",
 ]
 
-[[package]]
-name = "trussed-rsa-alloc"
-version = "0.1.0"
-source = "git+https://github.com/Nitrokey/trussed-rsa-backend.git?rev=2088e2f8a8d706276c1559717b4c6b6d4f270253#2088e2f8a8d706276c1559717b4c6b6d4f270253"
-dependencies = [
- "delog",
- "heapless-bytes 0.3.0",
- "num-bigint-dig",
- "postcard 0.7.3",
- "rsa",
- "serde",
- "trussed",
-]
-
 [[package]]
 name = "trussed-rsa-alloc"
 version = "0.1.0"
@@ -3425,7 +3356,7 @@ dependencies = [
 [[package]]
 name = "trussed-se050-backend"
 version = "0.1.0"
-source = "git+https://github.com/Nitrokey/trussed-se050-backend.git?rev=cb76fbff0bae365a474b8fbb12530d127ec995a9#cb76fbff0bae365a474b8fbb12530d127ec995a9"
+source = "git+https://github.com/Nitrokey/trussed-se050-backend.git?rev=1bccc1d9ec9fafb9b769e32fcfe7476b9b034506#1bccc1d9ec9fafb9b769e32fcfe7476b9b034506"
 dependencies = [
  "cbor-smol",
  "crypto-bigint 0.5.5",
@@ -3448,7 +3379,7 @@ dependencies = [
  "sha2 0.10.8",
  "trussed",
  "trussed-auth",
- "trussed-rsa-alloc 0.1.0 (git+https://github.com/Nitrokey/trussed-rsa-backend.git?rev=2088e2f8a8d706276c1559717b4c6b6d4f270253)",
+ "trussed-rsa-alloc",
  "trussed-staging",
 ]
 
@@ -3798,7 +3729,7 @@ dependencies = [
  "serde-indexed",
  "serde_bytes",
  "trussed",
- "trussed-rsa-alloc 0.1.0 (git+https://github.com/trussed-dev/trussed-rsa-backend.git?rev=2f51478f0861ff8db19fdd5290f023ab6f4c2fb9)",
+ "trussed-rsa-alloc",
  "trussed-staging",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index dbee0a25..a8aa1b2c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ trussed-staging = { git = "https://github.com/Nitrokey/trussed-staging.git", tag
 trussed-auth = { git = "https://github.com/trussed-dev/trussed-auth", rev = "4b8191f248c26cb074cdac887c7f3f48f9c449a4" }
 trussed-rsa-alloc = { git = "https://github.com/trussed-dev/trussed-rsa-backend.git", rev = "2f51478f0861ff8db19fdd5290f023ab6f4c2fb9" }
 trussed-usbip = { git = "https://github.com/Nitrokey/pc-usbip-runner.git", tag = "v0.0.1-nitrokey.3" }
-trussed-se050-backend = { git = "https://github.com/Nitrokey/trussed-se050-backend.git", rev = "cb76fbff0bae365a474b8fbb12530d127ec995a9" }
+trussed-se050-backend = { git = "https://github.com/Nitrokey/trussed-se050-backend.git", rev = "1bccc1d9ec9fafb9b769e32fcfe7476b9b034506" }
 
 [profile.release]
 codegen-units = 1
diff --git a/runners/embedded/Cargo.toml b/runners/embedded/Cargo.toml
index 034a21dc..4838d671 100644
--- a/runners/embedded/Cargo.toml
+++ b/runners/embedded/Cargo.toml
@@ -20,6 +20,7 @@ embedded-hal = "0.2.3"
 embedded-time = "0.12"
 generic-array = "0.14"
 nfc-device = { path = "../../components/nfc-device" }
+rand_chacha = { version = "0.3.1", default-features = false, optional = true }
 rand_core = "0.6"
 rtt-target = { version = "0.3", features = ["cortex-m"], optional = true }
 spi-memory = "0.2.0"
@@ -47,13 +48,12 @@ usbd-ccid = "0.2"
 usbd-ctaphid = "0.1"
 
 ### NRF52 specific dependencies
-chacha20 = { version = "0.7", default-features = false, features = ["rng"], optional = true }
 nrf52840-hal = { version = "0.15.1", optional = true }
 nrf52840-pac = { version = "0.11", optional = true }
 
 ### LPC55 specific dependencies
 cortex-m-semihosting = { version = "0.3.5", optional = true }
-lpc55-hal = { version = "0.3", features = ["littlefs", "rtic-peripherals"], optional = true }
+lpc55-hal = { version = "0.3", features = ["littlefs"], optional = true }
 lpc55-pac = { version = "0.4", optional = true }
 fm11nc08 = { path = "../../components/fm11nc08", optional = true }
 nb = "1"
@@ -99,8 +99,8 @@ board-nk3am = ["soc-nrf52840", "extflash_spi"]
 
 board-nk3xn = ["soc-lpc55"]
 
-soc-nrf52840 = ["nrf52840-hal", "nrf52840-pac", "chacha20", "se05x?/nrf"]
-soc-lpc55 = ["lpc55-hal", "lpc55-pac", "fm11nc08", "systick-monotonic", "se05x?/lpc55", "chacha20"]
+soc-nrf52840 = ["nrf52840-hal", "nrf52840-pac", "rand_chacha", "se05x?/nrf"]
+soc-lpc55 = ["lpc55-hal", "lpc55-pac", "fm11nc08", "systick-monotonic", "se05x?/lpc55", "rand_chacha"]
 
 se050 = ["dep:se05x", "apps/se050"]
 
diff --git a/runners/embedded/src/bin/app-nrf.rs b/runners/embedded/src/bin/app-nrf.rs
index 14a1dc1d..05162424 100644
--- a/runners/embedded/src/bin/app-nrf.rs
+++ b/runners/embedded/src/bin/app-nrf.rs
@@ -186,7 +186,7 @@ mod app {
         #[cfg(not(feature = "se050"))]
         use rand::{Rng as _, SeedableRng};
         #[cfg(not(feature = "se050"))]
-        let chacha_rng = chacha20::ChaCha8Rng::from_seed(dev_rng.gen());
+        let chacha_rng = rand_chacha::ChaCha8Rng::from_seed(dev_rng.gen());
 
         #[cfg(feature = "board-nk3am")]
         let ui = ERL::soc::board::init_ui(
diff --git a/runners/embedded/src/lib.rs b/runners/embedded/src/lib.rs
index 67d88805..b7557bb2 100644
--- a/runners/embedded/src/lib.rs
+++ b/runners/embedded/src/lib.rs
@@ -298,9 +298,9 @@ pub fn init_se050<
     delay: D,
     dev_rng: &mut R,
     init_status: &mut InitStatus,
-) -> (se05x::se05x::Se05X<I2C, D>, chacha20::ChaCha8Rng) {
-    use chacha20::ChaCha8Rng;
+) -> (se05x::se05x::Se05X<I2C, D>, rand_chacha::ChaCha8Rng) {
     use rand::{Rng as _, SeedableRng};
+    use rand_chacha::ChaCha8Rng;
     use se05x::se05x::commands::GetRandom;
 
     let seed: [u8; 32] = dev_rng.gen();
diff --git a/runners/embedded/src/soc_lpc55/init.rs b/runners/embedded/src/soc_lpc55/init.rs
index 54a0d197..ff8d6306 100644
--- a/runners/embedded/src/soc_lpc55/init.rs
+++ b/runners/embedded/src/soc_lpc55/init.rs
@@ -32,6 +32,7 @@ use interchange::Channel;
 use lpc55_hal as hal;
 #[cfg(feature = "log-info")]
 use lpc55_hal::drivers::timer::Elapsed as _;
+use rand_chacha::ChaCha8Rng;
 use trussed::{platform::UserInterface, service::Service, types::Location};
 use utils::OptionalStorage;
 
@@ -729,10 +730,10 @@ impl Stage5 {
                 );
                 (chacha_rng, Some(se050))
             } else {
-                (chacha20::ChaCha8Rng::from_seed(dev_rng.gen()), None)
+                (ChaCha8Rng::from_seed(dev_rng.gen()), None)
             };
             #[cfg(not(feature = "se050"))]
-            let res = (chacha20::ChaCha8Rng::from_seed(dev_rng.gen()),);
+            let res = (ChaCha8Rng::from_seed(dev_rng.gen()),);
             res
         };
 
diff --git a/runners/embedded/src/soc_lpc55/types.rs b/runners/embedded/src/soc_lpc55/types.rs
index 6d486045..ebea4676 100644
--- a/runners/embedded/src/soc_lpc55/types.rs
+++ b/runners/embedded/src/soc_lpc55/types.rs
@@ -84,7 +84,7 @@ impl crate::types::Soc for Soc {
     type ExternalFlashStorage = OptionalStorage<ExtFlashStorage<Spi, FlashCs>>;
     type UsbBus = lpc55_hal::drivers::UsbBus<UsbPeripheral>;
     type NfcDevice = super::nfc::NfcChip;
-    type Rng = chacha20::ChaCha8Rng;
+    type Rng = rand_chacha::ChaCha8Rng;
     type TrussedUI = UserInterface<ThreeButtons, RgbLed>;
     type Reboot = Lpc55Reboot;
     type UUID = [u8; 16];
diff --git a/runners/embedded/src/soc_nrf52840/types.rs b/runners/embedded/src/soc_nrf52840/types.rs
index a83e4c4c..612f16c9 100644
--- a/runners/embedded/src/soc_nrf52840/types.rs
+++ b/runners/embedded/src/soc_nrf52840/types.rs
@@ -52,7 +52,7 @@ impl crate::types::Soc for Soc {
     type ExternalFlashStorage = ExternalStorage;
     type UsbBus = Usbd<UsbPeripheral<'static>>;
     type NfcDevice = DummyNfc;
-    type Rng = chacha20::ChaCha8Rng;
+    type Rng = rand_chacha::ChaCha8Rng;
     type TrussedUI = super::board::TrussedUI;
     type Reboot = self::Reboot;
     type UUID = [u8; 16];