diff --git a/.gitignore b/.gitignore
index c7e5ac0..52c8758 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /ctr-0.6.0.crate
 /ctr-0.7.0.crate
 /ctr-0.8.0.crate
+/ctr-0.9.1.crate
diff --git a/rust-ctr.spec b/rust-ctr.spec
index f241350..3b7dc93 100644
--- a/rust-ctr.spec
+++ b/rust-ctr.spec
@@ -1,14 +1,14 @@
-# Generated by rust2rpm 18
-# * resolve circular dependency with aes
+# Generated by rust2rpm 20
+# * missing dev-dependencies: kuznyechik, magma
 %bcond_with check
 %global debug_package %{nil}
 
 %global crate ctr
 
 Name:           rust-%{crate}
-Version:        0.8.0
+Version:        0.9.1
 Release:        %autorelease
-Summary:        CTR block mode of operation
+Summary:        CTR block modes of operation
 
 # Upstream license specification: MIT OR Apache-2.0
 License:        MIT or ASL 2.0
@@ -16,14 +16,11 @@ URL:            https://crates.io/crates/ctr
 Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
-%if %{__cargo_skip_build}
-BuildArch:      noarch
-%endif
 
 BuildRequires:  rust-packaging
 
 %global _description %{expand:
-CTR block mode of operation.}
+CTR block modes of operation.}
 
 %description %{_description}
 
@@ -33,12 +30,12 @@ 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-APACHE LICENSE-MIT
-%doc README.md CHANGELOG.md
+%doc CHANGELOG.md README.md
 %{cargo_registry}/%{crate}-%{version_no_tilde}/
 
 %package     -n %{name}+default-devel
@@ -47,12 +44,60 @@ 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
 
+%package     -n %{name}+alloc-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+alloc-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "alloc" feature of the "%{crate}" crate.
+
+%files       -n %{name}+alloc-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%package     -n %{name}+block-padding-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+block-padding-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "block-padding" feature of the "%{crate}" crate.
+
+%files       -n %{name}+block-padding-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%package     -n %{name}+std-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+std-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "std" feature of the "%{crate}" crate.
+
+%files       -n %{name}+std-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%package     -n %{name}+zeroize-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+zeroize-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "zeroize" feature of the "%{crate}" crate.
+
+%files       -n %{name}+zeroize-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
 %cargo_prep
diff --git a/sources b/sources
index 143ff1f..ac24e92 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ctr-0.8.0.crate) = 26f4925cb50c72263cb939a4dcc7750f8fd50e3a2785fe86ae01f0d6c76d2842f4b8c35e67cf4df51cb9a72601065b0338f2311acbc2c8d0402b53444a7532cb
+SHA512 (ctr-0.9.1.crate) = 96c46ad09d6be2af8e926da6df16063b5a64129bf191eec63db2f290abb64b4476c73c6796b1d0ceaedb070421ce74f41b63e5c22c4a6ae040a686f85295c59e