diff --git a/Cargo.lock b/Cargo.lock
index ada25a4e6..26b191c15 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,9 +19,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "bitflags"
-version = "1.3.2"
+version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+checksum = "6776fc96284a0bb647b615056fc496d1fe1644a7ab01829818a6d91cae888b84"
 
 [[package]]
 name = "clock_ticks"
diff --git a/Cargo.toml b/Cargo.toml
index 802bc1329..d80ecbc62 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ exclude = ["Gir*.toml", "tests/**/*", "*.md", "generator.py"]
 edition = "2021"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 getopts = "0.2.21"
 getter_rules = { package = "fix-getters-rules", version = "0.3.0", default-features = false }
 xml-rs = "0.8"
diff --git a/book/src/tutorial/high_level_rust_api.md b/book/src/tutorial/high_level_rust_api.md
index 06a3a0732..5af169882 100644
--- a/book/src/tutorial/high_level_rust_api.md
+++ b/book/src/tutorial/high_level_rust_api.md
@@ -28,7 +28,7 @@ For our example, this results in the following dependencies:
 ```toml
 [dependencies]
 libc = "0.2"
-bitflags = "1.0"
+bitflags = "2.2"
 
 [dependencies.ffi]
 package = "pango-sys"
diff --git a/src/config/property_generate_flags.rs b/src/config/property_generate_flags.rs
index 4be75a368..b26433ff9 100644
--- a/src/config/property_generate_flags.rs
+++ b/src/config/property_generate_flags.rs
@@ -5,6 +5,7 @@ use bitflags::bitflags;
 use super::error::TomlHelper;
 
 bitflags! {
+    #[derive(Clone, Copy, Debug, PartialEq, Eq)]
     pub struct PropertyGenerateFlags: u32 {
         const GET = 1;
         const SET = 2;
diff --git a/tests/sys/atk-sys/Cargo.toml b/tests/sys/atk-sys/Cargo.toml
index 9ccf9e87e..604fc59d3 100644
--- a/tests/sys/atk-sys/Cargo.toml
+++ b/tests/sys/atk-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.glib]
diff --git a/tests/sys/gdk-pixbuf-sys/Cargo.toml b/tests/sys/gdk-pixbuf-sys/Cargo.toml
index beae5b9ff..915f32a19 100644
--- a/tests/sys/gdk-pixbuf-sys/Cargo.toml
+++ b/tests/sys/gdk-pixbuf-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.gio]
diff --git a/tests/sys/gdk-sys/Cargo.toml b/tests/sys/gdk-sys/Cargo.toml
index c573826c1..82fa927f3 100644
--- a/tests/sys/gdk-sys/Cargo.toml
+++ b/tests/sys/gdk-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.cairo]
diff --git a/tests/sys/gio-sys/Cargo.toml b/tests/sys/gio-sys/Cargo.toml
index 98344ad5b..20f32dd8e 100644
--- a/tests/sys/gio-sys/Cargo.toml
+++ b/tests/sys/gio-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.glib]
diff --git a/tests/sys/glib-sys/Cargo.toml b/tests/sys/glib-sys/Cargo.toml
index c966a05fa..12930adcb 100644
--- a/tests/sys/glib-sys/Cargo.toml
+++ b/tests/sys/glib-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [features]
diff --git a/tests/sys/gobject-sys/Cargo.toml b/tests/sys/gobject-sys/Cargo.toml
index 8fb06a697..a2d2456e8 100644
--- a/tests/sys/gobject-sys/Cargo.toml
+++ b/tests/sys/gobject-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.glib]
diff --git a/tests/sys/gtk-sys/Cargo.toml b/tests/sys/gtk-sys/Cargo.toml
index 4dbcae4a3..4e2f232e9 100644
--- a/tests/sys/gtk-sys/Cargo.toml
+++ b/tests/sys/gtk-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.atk]
diff --git a/tests/sys/pango-sys/Cargo.toml b/tests/sys/pango-sys/Cargo.toml
index d1b8b74c8..9dcf5cb20 100644
--- a/tests/sys/pango-sys/Cargo.toml
+++ b/tests/sys/pango-sys/Cargo.toml
@@ -3,7 +3,7 @@ pkg-config = "0.3.7"
 system-deps = "6"
 
 [dependencies]
-bitflags = "1.0"
+bitflags = "2.2"
 libc = "0.2"
 
 [dependencies.glib]