diff --git a/embassy-stm32/Cargo.toml b/embassy-stm32/Cargo.toml
index 3c6484c96..94bbcab8a 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 6f4c81c8a..a7aabc16a 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> {
             }
         }
     }
+}
 
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
-        self.fill_bytes(dest);
+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, dst: &mut [u8]) -> Result<(), Self::Error> {
+        self.fill_bytes(dst);
         Ok(())
     }
 }
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 8c591ebd2..70890189b 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 30b1d2be9..d039f956d 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 13fce7dc7..d7b6ff8d3 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 7a42fbdaa..9876fa7d8 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 c5478b17b..f73abab57 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 16c184de2..444ce8265 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/stm32/Cargo.toml b/tests/stm32/Cargo.toml
index 2eac636e5..6edf3db11 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 = [] }