diff --git a/embassy-nrf/Cargo.toml b/embassy-nrf/Cargo.toml
index 3e66d6886c..ce5cbe32d8 100644
--- a/embassy-nrf/Cargo.toml
+++ b/embassy-nrf/Cargo.toml
@@ -155,7 +155,7 @@ log = { version = "0.4.14", optional = true }
 cortex-m-rt = ">=0.6.15,<0.8"
 cortex-m = "0.7.6"
 critical-section = "1.1"
-rand_core = "0.6.3"
+rand_core = "0.9.0-alpha.2"
 fixed = "1.10.0"
 embedded-storage = "0.3.1"
 embedded-storage-async = "0.4.1"
diff --git a/embassy-nrf/src/rng.rs b/embassy-nrf/src/rng.rs
index ff61e08f32..d61a027ecf 100644
--- a/embassy-nrf/src/rng.rs
+++ b/embassy-nrf/src/rng.rs
@@ -3,6 +3,7 @@
 #![macro_use]
 
 use core::cell::{RefCell, RefMut};
+use core::convert::Infallible;
 use core::future::poll_fn;
 use core::marker::PhantomData;
 use core::ptr;
@@ -199,8 +200,25 @@ impl<'d, T: Instance> rand_core::RngCore for Rng<'d, T> {
         self.blocking_fill_bytes(&mut bytes);
         u64::from_ne_bytes(bytes)
     }
+}
+
+impl<'d, T: crate::rng::Instance> rand_core::TryRngCore for Rng<'d, T> {
+    type Error = Infallible;
+
+    fn try_next_u32(&mut self) -> Result<u32, Self::Error> {
+        let mut bytes = [0; 4];
+        self.blocking_fill_bytes(&mut bytes);
+        // We don't care about the endianness, so just use the native one.
+        Ok(u32::from_ne_bytes(bytes))
+    }
+
+    fn try_next_u64(&mut self) -> Result<u64, Self::Error> {
+        let mut bytes = [0; 8];
+        self.blocking_fill_bytes(&mut bytes);
+        Ok(u64::from_ne_bytes(bytes))
+    }
 
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
+    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Self::Error> {
         self.blocking_fill_bytes(dest);
         Ok(())
     }
diff --git a/embassy-rp/Cargo.toml b/embassy-rp/Cargo.toml
index 29a8a3c53a..7935bb2b57 100644
--- a/embassy-rp/Cargo.toml
+++ b/embassy-rp/Cargo.toml
@@ -128,7 +128,7 @@ embedded-io = { version = "0.6.1" }
 embedded-io-async = { version = "0.6.1" }
 embedded-storage = { version = "0.3" }
 embedded-storage-async = { version = "0.4.1" }
-rand_core = "0.6.4"
+rand_core = "0.9.0-alpha.2"
 fixed = "1.23.1"
 
 rp-pac = { git = "https://github.com/embassy-rs/rp-pac.git", rev = "a7f42d25517f7124ad3b4ed492dec8b0f50a0e6c", feature = ["rt"] }
diff --git a/embassy-rp/src/clocks.rs b/embassy-rp/src/clocks.rs
index ed146844c2..0f8358cf4d 100644
--- a/embassy-rp/src/clocks.rs
+++ b/embassy-rp/src/clocks.rs
@@ -2,6 +2,7 @@
 
 #[cfg(feature = "rp2040")]
 use core::arch::asm;
+use core::convert::Infallible;
 use core::marker::PhantomData;
 #[cfg(feature = "rp2040")]
 use core::sync::atomic::AtomicU16;
@@ -9,6 +10,7 @@ use core::sync::atomic::{AtomicU32, Ordering};
 
 use embassy_hal_internal::{into_ref, PeripheralRef};
 use pac::clocks::vals::*;
+use rand_core::RngCore;
 
 use crate::gpio::{AnyPin, SealedPin};
 #[cfg(feature = "rp2040")]
@@ -1032,10 +1034,6 @@ impl RoscRng {
 }
 
 impl rand_core::RngCore for RoscRng {
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
-        Ok(self.fill_bytes(dest))
-    }
-
     fn next_u32(&mut self) -> u32 {
         rand_core::impls::next_u32_via_fill(self)
     }
@@ -1048,6 +1046,22 @@ impl rand_core::RngCore for RoscRng {
         dest.fill_with(Self::next_u8)
     }
 }
+
+impl rand_core::TryRngCore for RoscRng {
+    type Error = Infallible;
+
+    fn try_next_u32(&mut self) -> Result<u32, Self::Error> {
+        Ok(self.next_u32())
+    }
+
+    fn try_next_u64(&mut self) -> Result<u64, Self::Error> {
+        Ok(self.next_u64())
+    }
+
+    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Self::Error> {
+        Ok(self.fill_bytes(dest))
+    }
+}
 /// Enter the `DORMANT` sleep state. This will stop *all* internal clocks
 /// and can only be exited through resets, dormant-wake GPIO interrupts,
 /// and RTC interrupts. If RTC is clocked from an internal clock source
diff --git a/embassy-rp/src/trng.rs b/embassy-rp/src/trng.rs
index 9f2f33c4b0..d1a36240b6 100644
--- a/embassy-rp/src/trng.rs
+++ b/embassy-rp/src/trng.rs
@@ -1,5 +1,6 @@
 //! True Random Number Generator (TRNG) driver.
 
+use core::convert::Infallible;
 use core::future::poll_fn;
 use core::marker::PhantomData;
 use core::ops::Not;
@@ -7,7 +8,6 @@ use core::task::Poll;
 
 use embassy_hal_internal::Peripheral;
 use embassy_sync::waitqueue::AtomicWaker;
-use rand_core::Error;
 
 use crate::interrupt::typelevel::{Binding, Interrupt};
 use crate::peripherals::TRNG;
@@ -366,12 +366,24 @@ impl<'d, T: Instance> rand_core::RngCore for Trng<'d, T> {
     fn fill_bytes(&mut self, dest: &mut [u8]) {
         self.blocking_fill_bytes(dest)
     }
+}
+impl<'d, T: Instance> rand_core::TryRngCore for Trng<'d, T> {
+    type Error = Infallible;
+
+    fn try_next_u32(&mut self) -> Result<u32, Self::Error> {
+        Ok(self.blocking_next_u32())
+    }
 
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
+    fn try_next_u64(&mut self) -> Result<u64, Self::Error> {
+        Ok(self.blocking_next_u64())
+    }
+
+    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Self::Error> {
         self.blocking_fill_bytes(dest);
         Ok(())
     }
 }
+
 /// TRNG interrupt handler.
 pub struct InterruptHandler<T: Instance> {
     _trng: PhantomData<T>,
diff --git a/embassy-stm32/Cargo.toml b/embassy-stm32/Cargo.toml
index 3c6484c966..94bbcab8ac 100644
--- a/embassy-stm32/Cargo.toml
+++ b/embassy-stm32/Cargo.toml
@@ -68,7 +68,7 @@ log = { version = "0.4.14", optional = true }
 cortex-m-rt = ">=0.6.15,<0.8"
 cortex-m = "0.7.6"
 futures-util = { version = "0.3.30", default-features = false }
-rand_core = "0.6.3"
+rand_core = "0.9.0-alpha.2"
 sdio-host = "0.5.0"
 critical-section = "1.1"
 #stm32-metapac = { version = "15" }
diff --git a/embassy-stm32/src/rng.rs b/embassy-stm32/src/rng.rs
index 6f4c81c8ac..a7aabc16a7 100644
--- a/embassy-stm32/src/rng.rs
+++ b/embassy-stm32/src/rng.rs
@@ -1,13 +1,14 @@
 //! Random Number Generator (RNG)
 #![macro_use]
 
+use core::convert::Infallible;
 use core::future::poll_fn;
 use core::marker::PhantomData;
 use core::task::Poll;
 
 use embassy_hal_internal::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
-use rand_core::{CryptoRng, RngCore};
+use rand_core::{CryptoRng, RngCore, TryRngCore};
 
 use crate::interrupt::typelevel::Interrupt;
 use crate::{interrupt, pac, peripherals, rcc, Peripheral};
@@ -213,9 +214,21 @@ impl<'d, T: Instance> RngCore for Rng<'d, T> {
             }
         }
     }
+}
+
+impl<'d, T: crate::rng::Instance> TryRngCore for Rng<'d, T> {
+    type Error = Infallible;
+
+    fn try_next_u32(&mut self) -> Result<u32, Self::Error> {
+        Ok(self.next_u32())
+    }
+
+    fn try_next_u64(&mut self) -> Result<u64, Self::Error> {
+        Ok(self.next_u64())
+    }
 
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
-        self.fill_bytes(dest);
+    fn try_fill_bytes(&mut self, dst: &mut [u8]) -> Result<(), Self::Error> {
+        self.fill_bytes(dst);
         Ok(())
     }
 }
diff --git a/examples/nrf-rtos-trace/Cargo.toml b/examples/nrf-rtos-trace/Cargo.toml
index 98a6788151..8f80029091 100644
--- a/examples/nrf-rtos-trace/Cargo.toml
+++ b/examples/nrf-rtos-trace/Cargo.toml
@@ -23,7 +23,7 @@ embassy-nrf = { version = "0.2.0", path = "../../embassy-nrf", features = ["nrf5
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3" }
-rand = { version = "0.8.4", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 serde = { version = "1.0.136", default-features = false }
 rtos-trace = "0.1.3"
 systemview-target = { version = "0.1.2", features = ["callbacks-app", "callbacks-os", "log", "cortex-m"] }
diff --git a/examples/nrf52840/Cargo.toml b/examples/nrf52840/Cargo.toml
index 17fa6234d3..9aba827f2a 100644
--- a/examples/nrf52840/Cargo.toml
+++ b/examples/nrf52840/Cargo.toml
@@ -25,7 +25,7 @@ static_cell = { version = "2" }
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
-rand = { version = "0.8.4", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 embedded-storage = "0.3.1"
 usbd-hid = "0.8.1"
 serde = { version = "1.0.136", default-features = false }
diff --git a/examples/nrf5340/Cargo.toml b/examples/nrf5340/Cargo.toml
index 0da85be079..bba8c229ba 100644
--- a/examples/nrf5340/Cargo.toml
+++ b/examples/nrf5340/Cargo.toml
@@ -21,7 +21,7 @@ static_cell = "2"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
-rand = { version = "0.8.4", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 embedded-storage = "0.3.1"
 usbd-hid = "0.8.1"
 serde = { version = "1.0.136", default-features = false }
diff --git a/examples/rp/Cargo.toml b/examples/rp/Cargo.toml
index 04b4c6317e..7134c5fa2e 100644
--- a/examples/rp/Cargo.toml
+++ b/examples/rp/Cargo.toml
@@ -56,7 +56,7 @@ portable-atomic = { version = "1.5", features = ["critical-section"] }
 log = "0.4"
 pio-proc = "0.2"
 pio = "0.2.1"
-rand = { version = "0.8.5", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 embedded-sdmmc = "0.7.0"
 
 bt-hci = { version = "0.1.0", default-features = false, features = ["defmt"] }
diff --git a/examples/rp23/Cargo.toml b/examples/rp23/Cargo.toml
index 087f6fd698..45b51315e6 100644
--- a/examples/rp23/Cargo.toml
+++ b/examples/rp23/Cargo.toml
@@ -56,7 +56,7 @@ portable-atomic = { version = "1.5", features = ["critical-section"] }
 log = "0.4"
 pio-proc = "0.2"
 pio = "0.2.1"
-rand = { version = "0.8.5", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 embedded-sdmmc = "0.7.0"
 
 bt-hci = { version = "0.1.0", default-features = false, features = ["defmt"] }
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 8c591ebd26..70890189b9 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -24,7 +24,7 @@ embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 heapless = { version = "0.8", default-features = false }
 nb = "1.0.0"
-rand_core = "0.6.3"
+rand_core = "0.9.0-alpha.2"
 critical-section = "1.1"
 embedded-storage = "0.3.1"
 static_cell = "2"
diff --git a/examples/stm32h5/Cargo.toml b/examples/stm32h5/Cargo.toml
index 30b1d2be91..d039f956d7 100644
--- a/examples/stm32h5/Cargo.toml
+++ b/examples/stm32h5/Cargo.toml
@@ -26,7 +26,7 @@ embedded-io-async = { version = "0.6.1" }
 embedded-nal-async = { version = "0.7.1" }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 heapless = { version = "0.8", default-features = false }
-rand_core = "0.6.3"
+rand_core = "0.9.0-alpha.2"
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
diff --git a/examples/stm32h7/Cargo.toml b/examples/stm32h7/Cargo.toml
index 13fce7dc79..d7b6ff8d32 100644
--- a/examples/stm32h7/Cargo.toml
+++ b/examples/stm32h7/Cargo.toml
@@ -27,7 +27,7 @@ embedded-nal-async = { version = "0.7.1" }
 embedded-io-async = { version = "0.6.1" }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 heapless = { version = "0.8", default-features = false }
-rand_core = "0.6.3"
+rand_core = "0.9.0-alpha.2"
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
diff --git a/examples/stm32h755cm4/Cargo.toml b/examples/stm32h755cm4/Cargo.toml
index 7a42fbdaae..9876fa7d8f 100644
--- a/examples/stm32h755cm4/Cargo.toml
+++ b/examples/stm32h755cm4/Cargo.toml
@@ -27,7 +27,7 @@ embedded-nal-async = { version = "0.7.1" }
 embedded-io-async = { version = "0.6.1" }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 heapless = { version = "0.8", default-features = false }
-rand_core = "0.6.3"
+rand_core = "0.9.0-alpha.2"
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
diff --git a/examples/stm32l4/Cargo.toml b/examples/stm32l4/Cargo.toml
index c5478b17ba..f73abab571 100644
--- a/examples/stm32l4/Cargo.toml
+++ b/examples/stm32l4/Cargo.toml
@@ -30,7 +30,7 @@ embedded-hal-bus = { version = "0.1", features = ["async"] }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 heapless = { version = "0.8", default-features = false }
 chrono = { version = "^0.4", default-features = false }
-rand = { version = "0.8.5", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 static_cell = "2"
 
 micromath = "2.0.0"
diff --git a/examples/stm32l5/Cargo.toml b/examples/stm32l5/Cargo.toml
index 16c184de23..444ce8265a 100644
--- a/examples/stm32l5/Cargo.toml
+++ b/examples/stm32l5/Cargo.toml
@@ -23,7 +23,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 heapless = { version = "0.8", default-features = false }
-rand_core = { version = "0.6.3", default-features = false }
+rand_core = { version = "0.9.0-alpha.2", default-features = false }
 embedded-io-async = { version = "0.6.1" }
 static_cell = "2"
 
diff --git a/tests/rp/Cargo.toml b/tests/rp/Cargo.toml
index 12f1ec3ce5..08c440fb04 100644
--- a/tests/rp/Cargo.toml
+++ b/tests/rp/Cargo.toml
@@ -35,7 +35,7 @@ static_cell = "2"
 portable-atomic = { version = "1.5", features = ["critical-section"] }
 pio = "0.2"
 pio-proc = "0.2"
-rand = { version = "0.8.5", default-features = false }
+rand = { version = "0.9.0-alpha.2", default-features = false }
 
 [profile.dev]
 debug = 2
diff --git a/tests/stm32/Cargo.toml b/tests/stm32/Cargo.toml
index 2eac636e5b..6edf3db11f 100644
--- a/tests/stm32/Cargo.toml
+++ b/tests/stm32/Cargo.toml
@@ -79,8 +79,8 @@ embedded-hal-async = { version = "1.0" }
 embedded-can = { version = "0.4" }
 micromath = "2.0.0"
 panic-probe = { version = "0.3.0", features = ["print-defmt"] }
-rand_core = { version = "0.6", default-features = false }
-rand_chacha = { version = "0.3", default-features = false }
+rand_core = { version = "0.9.0-alpha.2", default-features = false }
+rand_chacha = { version = "0.9.0-alpha.2", default-features = false }
 static_cell = "2"
 portable-atomic = { version = "1.5", features = [] }