diff --git a/.gitignore b/.gitignore
index 86ee64a..c2e6433 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /crossbeam-utils-0.4.0.crate
 /crossbeam-utils-0.4.1.crate
 /crossbeam-utils-0.5.0.crate
+/crossbeam-utils-0.6.3.crate
diff --git a/rust-crossbeam-utils.spec b/rust-crossbeam-utils.spec
index 99c1b93..8732ab4 100644
--- a/rust-crossbeam-utils.spec
+++ b/rust-crossbeam-utils.spec
@@ -6,8 +6,8 @@
 %global crate crossbeam-utils
 
 Name:           rust-%{crate}
-Version:        0.5.0
-Release:        3%{?dist}
+Version:        0.6.3
+Release:        1%{?dist}
 Summary:        Utilities for concurrent programming
 
 # Upstream license specification: MIT/Apache-2.0
@@ -18,6 +18,7 @@ Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
+BuildRequires:  (crate(cfg-if/default) >= 0.1.0 with crate(cfg-if/default) < 0.2.0)
 
 %global _description \
 Utilities for concurrent programming.
@@ -50,16 +51,16 @@ which use "default" feature of "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
-%package     -n %{name}+use_std-devel
+%package     -n %{name}+std-devel
 Summary:        %{summary}
 BuildArch:      noarch
 
-%description -n %{name}+use_std-devel %{_description}
+%description -n %{name}+std-devel %{_description}
 
 This package contains library source intended for building other packages
-which use "use_std" feature of "%{crate}" crate.
+which use "std" feature of "%{crate}" crate.
 
-%files       -n %{name}+use_std-devel
+%files       -n %{name}+std-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
 %prep
@@ -78,6 +79,9 @@ which use "use_std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sat Dec 15 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.6.3-1
+- Update to 0.6.3
+
 * Sat Oct 27 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.5.0-3
 - Adapt to new packaging
 
diff --git a/sources b/sources
index 5d8ff86..9431f1a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (crossbeam-utils-0.5.0.crate) = eebb6bf81517c930fdb4c15a8eaf92693907fe58dbf1913a9c2f4315a6c0550eb772cb15c47e2ac4e3f4decdd47f69ea8e42910ea649bd2e2279ad4cbf9d02c4
+SHA512 (crossbeam-utils-0.6.3.crate) = 3a6df428dc2791a76823be7658905be2c45bb859703bc13e5c1142c4e5c815f2c0bc12da7419370c541afbba8e85c078f0ee0da65c27502972a6187c80b8ee7d