diff --git a/.gitignore b/.gitignore
index b3d78c3..e6b5a0c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /procfs-0.8.1.crate
 /procfs-0.9.0.crate
 /procfs-0.9.1.crate
+/procfs-0.12.0.crate
diff --git a/rust-procfs.spec b/rust-procfs.spec
index 62edbb2..dc21172 100644
--- a/rust-procfs.spec
+++ b/rust-procfs.spec
@@ -1,26 +1,22 @@
-# Generated by rust2rpm 16
-# * procinfo depends on nom 2.x which is too old
+# Generated by rust2rpm 22
+# * missing dev-dependency: procinfo (depends on outdated nom 2)
 %bcond_with check
 %global debug_package %{nil}
 
 %global crate procfs
 
-Name:           rust-%{crate}
-Version:        0.9.1
+Name:           rust-procfs
+Version:        0.12.0
 Release:        %autorelease
 Summary:        Interface to the linux procfs pseudo-filesystem
 
-# Upstream license specification: MIT OR Apache-2.0
-License:        MIT or ASL 2.0
+License:        MIT OR Apache-2.0
 URL:            https://crates.io/crates/procfs
 Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
-%if %{__cargo_skip_build}
-BuildArch:      noarch
-%endif
 
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
 Interface to the linux procfs pseudo-filesystem.}
@@ -33,13 +29,16 @@ BuildArch:      noarch
 
 %description    devel %{_description}
 
-This package contains library source intended for building other packages
-which use "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "%{crate}" crate.
 
 %files          devel
-%license LICENSE-MIT LICENSE-APACHE COPYRIGHT.txt
-%doc README.md support.md
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/COPYRIGHT.txt
+%license %{crate_instdir}/LICENSE-APACHE
+%license %{crate_instdir}/LICENSE-MIT
+%doc %{crate_instdir}/README.md
+%doc %{crate_instdir}/support.md
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -47,11 +46,11 @@ BuildArch:      noarch
 
 %description -n %{name}+default-devel %{_description}
 
-This package contains library source intended for building other packages
-which use "default" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "default" feature of the "%{crate}" crate.
 
 %files       -n %{name}+default-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+backtrace-devel
 Summary:        %{summary}
@@ -59,11 +58,11 @@ BuildArch:      noarch
 
 %description -n %{name}+backtrace-devel %{_description}
 
-This package contains library source intended for building other packages
-which use "backtrace" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "backtrace" feature of the "%{crate}" crate.
 
 %files       -n %{name}+backtrace-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %package     -n %{name}+chrono-devel
 Summary:        %{summary}
@@ -71,11 +70,23 @@ BuildArch:      noarch
 
 %description -n %{name}+chrono-devel %{_description}
 
-This package contains library source intended for building other packages
-which use "chrono" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "chrono" feature of the "%{crate}" crate.
 
 %files       -n %{name}+chrono-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
+
+%package     -n %{name}+flate2-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+flate2-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "flate2" feature of the "%{crate}" crate.
+
+%files       -n %{name}+flate2-devel
+%ghost %{crate_instdir}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
diff --git a/sources b/sources
index 6d08a82..2da3a28 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (procfs-0.9.1.crate) = 9946c82b85dcaa53b0f0d98e48fe764b1f196f850eef29ac8abd1f7732c3200fbcf40b616186da43eef7ad8acdb288f5350a0ff176ceb338135f3d2ce38cbbbb
+SHA512 (procfs-0.12.0.crate) = 48bdd24c0514dd9a4a16be492085d9b6be41b81333b5dfc99cf0f04e337a532dee5d50b4317ae450f396924364f00b01fcd3b63e655ad50e53eb222f29a90499