diff --git a/.gitignore b/.gitignore
index 7715a0e..9053f63 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /bindgen-0.42.2.crate
 /bindgen-0.43.0.crate
 /bindgen-0.43.1.crate
+/bindgen-0.46.0.crate
diff --git a/bindgen-fix-metadata.diff b/bindgen-fix-metadata.diff
deleted file mode 100644
index 09e781e..0000000
--- a/bindgen-fix-metadata.diff
+++ /dev/null
@@ -1,16 +0,0 @@
---- bindgen-0.43.0/Cargo.toml	1970-01-01T01:00:00+01:00
-+++ bindgen-0.43.0/Cargo.toml	2018-11-04T08:28:26.571463+01:00
-@@ -63,11 +63,11 @@
- version = "0.1.2"
- 
- [dependencies.proc-macro2]
--version = "0.3.2, < 0.3.6"
-+version = "0.4"
- default-features = false
- 
- [dependencies.quote]
--version = "0.5"
-+version = "0.6"
- default-features = false
- 
- [dependencies.regex]
diff --git a/rust-bindgen.spec b/rust-bindgen.spec
index 51a3afa..4203b28 100644
--- a/rust-bindgen.spec
+++ b/rust-bindgen.spec
@@ -4,7 +4,7 @@
 %global crate bindgen
 
 Name:           rust-%{crate}
-Version:        0.43.1
+Version:        0.46.0
 Release:        1%{?dist}
 Summary:        Automatically generates Rust FFI bindings to C and C++ libraries
 
@@ -12,11 +12,6 @@ Summary:        Automatically generates Rust FFI bindings to C and C++ libraries
 License:        BSD
 URL:            https://crates.io/crates/bindgen
 Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
-# Initial patched metadata
-# * Update quote and proc-macro2
-Patch0:         bindgen-fix-metadata.diff
-# https://github.com/rust-lang-nursery/rust-bindgen/pull/1409
-Patch0001:      0001-Update-quote-and-proc-macro.patch
 
 ExclusiveArch:  %{rust_arches}
 
@@ -28,14 +23,15 @@ BuildRequires:  (crate(clang-sys/clang_6_0) >= 0.26.0 with crate(clang-sys/clang
 BuildRequires:  (crate(clang-sys/default) >= 0.26.0 with crate(clang-sys/default) < 0.27.0)
 BuildRequires:  (crate(clang-sys/runtime) >= 0.26.0 with crate(clang-sys/runtime) < 0.27.0)
 BuildRequires:  (crate(clap/default) >= 2.0.0 with crate(clap/default) < 3.0.0)
-BuildRequires:  (crate(env_logger/default) >= 0.5.0 with crate(env_logger/default) < 0.6.0)
+BuildRequires:  (crate(env_logger/default) >= 0.6.0 with crate(env_logger/default) < 0.7.0)
+BuildRequires:  (crate(hashbrown/default) >= 0.1.0 with crate(hashbrown/default) < 0.2.0)
 BuildRequires:  (crate(lazy_static/default) >= 1.0.0 with crate(lazy_static/default) < 2.0.0)
 BuildRequires:  (crate(log/default) >= 0.4.0 with crate(log/default) < 0.5.0)
 BuildRequires:  (crate(peeking_take_while/default) >= 0.1.2 with crate(peeking_take_while/default) < 0.2.0)
 BuildRequires:  (crate(proc-macro2) >= 0.4.0 with crate(proc-macro2) < 0.5.0)
 BuildRequires:  (crate(quote) >= 0.6.0 with crate(quote) < 0.7.0)
 BuildRequires:  (crate(regex/default) >= 1.0.0 with crate(regex/default) < 2.0.0)
-BuildRequires:  (crate(which/default) >= 1.0.2 with crate(which/default) < 2.0.0)
+BuildRequires:  (crate(which/default) >= 2.0.0 with crate(which/default) < 3.0.0)
 %if %{with check}
 BuildRequires:  (crate(clap/default) >= 2.0.0 with crate(clap/default) < 3.0.0)
 BuildRequires:  (crate(diff/default) >= 0.1.0 with crate(diff/default) < 0.2.0)
@@ -136,6 +132,9 @@ which use "logging" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Mon Jan 14 2019 Josh Stone <jistone@redhat.com> - 0.46.0-1
+- Update to 0.46.0
+
 * Sat Nov 10 2018 Josh Stone <jistone@redhat.com> - 0.43.1-1
 - Update to 0.43.1
 
diff --git a/sources b/sources
index 61e166f..1a1fa8d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (bindgen-0.43.1.crate) = b5d4f3f7c49952a64b8fdb045885e0ab1872f0d70253ee1c1749ae873fbdf0687b0289605b1e69726a8591faef26ccde91cc13ebbbd5e4b55ef62f28df7e3aab
+SHA512 (bindgen-0.46.0.crate) = 1303b20d837d67891449495a3a0ec024c9ba8697e2ba82e891cad83d840f2c3d005eee6c147ae1ef2485ac49398a18e3dcb5c4ecf858f741424e68e077256bbd