diff --git a/Cargo.lock b/Cargo.lock
index 086591b..70edb8b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,9 +16,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.3.3"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
 
 [[package]]
 name = "bytecount"
@@ -174,7 +174,7 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 name = "mos6502"
 version = "0.5.0"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "log",
  "num",
  "skeptic",
diff --git a/Cargo.toml b/Cargo.toml
index f0635cc..de3e6f9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,7 +41,7 @@ edition = "2021"
 name = "mos6502"
 
 [dependencies]
-bitflags = "2.3.3"
+bitflags = "2.4.0"
 log = "0.4.19"
 
 [dependencies.num]