diff --git a/Cargo.lock b/Cargo.lock
index 03b6600d..54f7b6dc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1113,9 +1113,9 @@ checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
 
 [[package]]
 name = "winter-crypto"
-version = "0.8.3"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6aea508aa819e934c837f24bb706e69d890b9be2db82da39cde887e6f0a37246"
+checksum = "00fbb724d2d9fbfd3aa16ea27f5e461d4fe1d74b0c9e0ed1bf79e9e2a955f4d5"
 dependencies = [
  "blake3",
  "sha3",
@@ -1125,9 +1125,9 @@ dependencies = [
 
 [[package]]
 name = "winter-math"
-version = "0.8.4"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c36d2a04b4f79f2c8c6945aab6545b7310a0cd6ae47b9210750400df6775a04"
+checksum = "004f85bb051ce986ec0b9a2bd90aaf81b83e3c67464becfdf7db31f14c1019ba"
 dependencies = [
  "serde",
  "winter-utils",
@@ -1135,9 +1135,9 @@ dependencies = [
 
 [[package]]
 name = "winter-rand-utils"
-version = "0.8.3"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b19ce50e688442052e957a69d72b8057d72ae8f03a7aea7c2538e11c76b2583"
+checksum = "f2b827c901ab0c316d89812858ff451d60855c0a5c7ae734b098c62a28624181"
 dependencies = [
  "rand",
  "winter-utils",
@@ -1145,6 +1145,6 @@ dependencies = [
 
 [[package]]
 name = "winter-utils"
-version = "0.8.4"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab6efccf6efa6fd0a80784f3894bc372ada67cc30d9c017fc907d4c0cdce86e7"
+checksum = "42b77a802c3517972ad537694df27249b5bd5b56e9dc8e368c12991172eb929c"
diff --git a/Cargo.toml b/Cargo.toml
index e0c86526..0940160d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ documentation = "https://docs.rs/miden-crypto/0.9.3"
 categories = ["cryptography", "no-std"]
 keywords = ["miden", "crypto", "hash", "merkle"]
 edition = "2021"
-rust-version = "1.75"
+rust-version = "1.78"
 
 [[bin]]
 name = "miden-crypto"
@@ -52,12 +52,12 @@ num = { version = "0.4", default-features = false, features = ["alloc", "libm"]
 num-complex = { version = "0.4", default-features = false }
 rand = { version = "0.8", default-features = false }
 rand_core = { version = "0.6", default-features = false }
-rand-utils = { version = "0.8", package = "winter-rand-utils", optional = true }
+rand-utils = { version = "0.9", package = "winter-rand-utils", optional = true }
 serde = { version = "1.0", default-features = false, optional = true, features = ["derive"] }
 sha3 = { version = "0.10", default-features = false }
-winter-crypto = { version = "0.8", default-features = false }
-winter-math = { version = "0.8", default-features = false }
-winter-utils = { version = "0.8", default-features = false }
+winter-crypto = { version = "0.9", default-features = false }
+winter-math = { version = "0.9", default-features = false }
+winter-utils = { version = "0.9", default-features = false }
 
 [dev-dependencies]
 criterion = { version = "0.5", features = ["html_reports"] }
@@ -65,7 +65,7 @@ getrandom = { version = "0.2", features = ["js"] }
 hex = { version = "0.4", default-features = false, features = ["alloc"] }
 proptest = "1.4"
 rand_chacha = { version = "0.3", default-features = false }
-rand-utils = { version = "0.8", package = "winter-rand-utils" }
+rand-utils = { version = "0.9", package = "winter-rand-utils" }
 seq-macro = { version = "0.3" }
 
 [build-dependencies]
diff --git a/rust-toolchain b/rust-toolchain
index 07cde984..8e95c75d 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.75
+1.78
diff --git a/src/merkle/merkle_tree.rs b/src/merkle/merkle_tree.rs
index ad7079ed..12b514a0 100644
--- a/src/merkle/merkle_tree.rs
+++ b/src/merkle/merkle_tree.rs
@@ -1,8 +1,6 @@
 use alloc::{string::String, vec::Vec};
 use core::{fmt, ops::Deref, slice};
 
-use winter_math::log2;
-
 use super::{InnerNodeInfo, MerkleError, MerklePath, NodeIndex, Rpo256, RpoDigest, Word};
 use crate::utils::{uninit_vector, word_to_hex};
 
@@ -70,7 +68,7 @@ impl MerkleTree {
     ///
     /// Merkle tree of depth 1 has two leaves, depth 2 has four leaves etc.
     pub fn depth(&self) -> u8 {
-        log2(self.nodes.len() / 2) as u8
+        (self.nodes.len() / 2).ilog2() as u8
     }
 
     /// Returns a node at the specified depth and index value.