diff --git a/Cargo.lock b/Cargo.lock
index 203bc93e2ac35df9b7551e79c2fc3ea26dcfbe87..c274c45f9f4aee945c08573c5aec225a344fc5c7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -150,22 +150,21 @@ dependencies = [
 
 [[package]]
 name = "glib"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "glib-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "gobject-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gobject-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "glib-sys"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -176,10 +175,10 @@ version = "0.1.0"
 dependencies = [
  "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "glib 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "glib-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "gobject-gen-test 0.1.0",
- "gobject-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gobject-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 0.4.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -195,9 +194,9 @@ version = "0.1.0"
 dependencies = [
  "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "gir 0.0.1 (git+https://github.com/gtk-rs/gir)",
- "glib 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "glib-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "gobject-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gobject-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "shell-words 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -206,11 +205,10 @@ dependencies = [
 
 [[package]]
 name = "gobject-sys"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "glib-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glib-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -761,9 +759,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum getopts 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "0a7292d30132fb5424b354f5dc02512a86e4c516fe544bb7a25e7f266951b797"
 "checksum gir 0.0.1 (git+https://github.com/gtk-rs/gir)" = "<none>"
 "checksum git2 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)" = "591f8be1674b421644b6c030969520bc3fa12114d2eb467471982ed3e9584e71"
-"checksum glib 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5e0be1b1432e227bcd1a9b28db9dc1474a7e7fd4227e08e16f35304f32d09b61"
-"checksum glib-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "615bef979b5838526aee99241afc80cfb2e34a8735d4bcb8ec6072598c18a408"
-"checksum gobject-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "70409d6405db8b1591602fcd0cbe8af52cd9976dd39194442b4c149ba343f86d"
+"checksum glib 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "740f7fda8dde5f5e3944dabdb4a73ac6094a8a7fdf0af377468e98ca93733e61"
+"checksum glib-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3573351e846caed9f11207b275cd67bc07f0c2c94fb628e5d7c92ca056c7882d"
+"checksum gobject-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "08475e4a08f27e6e2287005950114735ed61cec2cb8c1187682a5aec8c69b715"
 "checksum hprof 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "17b42e67c01ef27237e424783538a0bc45721ecd53438fab5c3f8bbf5dfd8516"
 "checksum humantime 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0484fda3e7007f2a4a0d9c3a703ca38c71c54c55602ce4660c419fd32e188c9e"
 "checksum idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "38f09e0f0b1fb55fdee1f17470ad800da77af5186a1a76c026b679358b7e844e"
diff --git a/Cargo.toml b/Cargo.toml
index 79b0118f08706dd04401360906206f3c542197e1..49d0337b8cd69cb888d7ded25e1e442c97616f43 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,9 +16,9 @@ test = false
 test-generated = []
 
 [dependencies]
-glib = "0.5.0"
-glib-sys = "0.6.0"
-gobject-sys = "0.6.0"
+glib = "0.6.0"
+glib-sys = "0.7.0"
+gobject-sys = "0.7.0"
 libc = "0.2"
 proc-macro2 = {version = "0.4.8"}
 quote = { version="0.6" }
@@ -36,8 +36,8 @@ syn = { git = 'https://github.com/dtolnay/syn' }
 cc = "1.0"
 
 [dev-dependencies]
-glib-sys = "0.6.0"
-gobject-sys = "0.6.0"
+glib-sys = "0.7.0"
+gobject-sys = "0.7.0"
 gobject-gen-test = { path = "./mixed_tests" }
 #ctest-sys = { path = "./mixed_tests/auto" }
 libc = "0.2"
diff --git a/mixed_tests/Cargo.toml b/mixed_tests/Cargo.toml
index c6928fe3f63660de0cb81ede18bec1a172763697..398baf90527b46cdc9c9eff9b03035d4da82db1c 100644
--- a/mixed_tests/Cargo.toml
+++ b/mixed_tests/Cargo.toml
@@ -7,9 +7,9 @@ git = "https://github.com/gtk-rs/gir"
 
 [dependencies]
 libc = "0.2"
-glib-sys = "0.6.0"
-gobject-sys = "0.6.0"
-glib = "0.5.0"
+glib-sys = "0.7.0"
+gobject-sys = "0.7.0"
+glib = "0.6.0"
 
 [dev-dependencies]
 shell-words = "0.1.0"
diff --git a/src/gen/privatestatic.rs b/src/gen/privatestatic.rs
index 8f64357c65b78ecd8f069bb46cabcb599284d2bc..9fe03ca70e3f0da202dacaa9c9aa0ba5fc34debc 100644
--- a/src/gen/privatestatic.rs
+++ b/src/gen/privatestatic.rs
@@ -320,7 +320,7 @@ impl<'lt, 'ast: 'lt, Boilerplate: boilerplate::Boilerplate<'ast>>
                     Some(#vtable::init),
                     instance_size as u32,
                     Some(#instance_ffi::init),
-                    gobject_ffi::GTypeFlags::empty()
+                    0
                     );
                     #add_instance_private
 
@@ -352,7 +352,7 @@ impl<'lt, 'ast: 'lt, Boilerplate: boilerplate::Boilerplate<'ast>>
                         Some(#vtable::init),
                         0, // instance_size
                         None, // instance_init
-                        gobject_ffi::GTypeFlags::empty()
+                        0
                     )
                 }
             }
diff --git a/src/hir/property.rs b/src/hir/property.rs
index 3239a6b58c96ab35cc25b10e67c936105d74f7ea..015cec69c6a5bf60b698f7f3cbb5143e0521fe5e 100644
--- a/src/hir/property.rs
+++ b/src/hir/property.rs
@@ -123,7 +123,7 @@ impl PropertyAttributes {
 
     pub fn flags(&self) -> GParamFlags {
         // let mut result = gobject_sys::G_PARAM_READABLE ^ gobject_sys::G_PARAM_READABLE;
-        let mut result = GParamFlags::empty();
+        let mut result = 0;
         if self.readable {
             result |= gobject_sys::G_PARAM_READABLE;
         }
@@ -162,8 +162,8 @@ impl PropertyAttributes {
 
     pub fn flags_tokens(&self) -> TokenStream {
         // gobject_ffi
-        let flags = self.flags().bits();
-        quote!{ gobject_ffi::GParamFlags::from_bits(#flags).unwrap() }
+        let flags = self.flags();
+        quote!{ #flags }
     }
 
     pub fn blurb(&self) -> &Option<Lit> {