diff --git a/Cargo.lock b/Cargo.lock
index 1d60b4c4..25752c20 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -102,7 +102,7 @@ checksum = "7d5a26814d8dcb93b0e5a0ff3c6d80a8843bafb21b39e8e18a6f05471870e110"
 name = "as_hostcall"
 version = "0.1.0"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "derive_more",
  "thiserror-no-std",
 ]
@@ -129,7 +129,7 @@ version = "0.1.0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.96",
 ]
 
 [[package]]
@@ -248,9 +248,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.6.0"
+version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
+checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
 
 [[package]]
 name = "bumpalo"
@@ -982,7 +982,7 @@ version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab2156c4fce2f8df6c499cc1c763e4394b7482525bf2a9701c9d79d215f519e4"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "cfg-if",
  "cfg_aliases",
  "libc",
@@ -1177,7 +1177,7 @@ version = "0.38.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "errno",
  "libc",
  "linux-raw-sys 0.4.14",
@@ -1585,7 +1585,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07035cc9a9b41e62d3bb3a3815a66ab87c993c06fe1cf6b2a3f2a18499d937db"
 dependencies = [
  "ahash",
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "hashbrown 0.14.5",
  "indexmap",
  "semver",
diff --git a/as_hostcall/Cargo.toml b/as_hostcall/Cargo.toml
index d6671d5e..f7efd918 100644
--- a/as_hostcall/Cargo.toml
+++ b/as_hostcall/Cargo.toml
@@ -10,7 +10,7 @@ edition = "2021"
 [dependencies]
 # smoltcp.workspace = true
 derive_more = "0.99.17"
-bitflags = "2.5.0"
+bitflags = "2.8.0"
 thiserror-no-std = "2.0.2"
 # managed = { version = "0.8", default-features = false, features = ["map"] }
 # defmt = { version = "0.3", optional = true }