diff --git a/Cargo.lock b/Cargo.lock
index 6232b09..d4c3ed8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,9 +10,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.6.0"
+version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
+checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
 [[package]]
 name = "embedded-hal"
@@ -53,7 +53,7 @@ dependencies = [
 name = "uart_sifive"
 version = "0.0.0"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.9.1",
  "volatile-register",
 ]
 
@@ -61,7 +61,7 @@ dependencies = [
 name = "uart_xilinx"
 version = "0.2.0"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.9.1",
  "volatile-register",
 ]