diff --git a/.gitignore b/.gitignore
index 7581914..3f24242 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /ipnet-2.2.0.crate
 /ipnet-2.3.0.crate
 /ipnet-2.3.1.crate
+/ipnet-2.4.0.crate
diff --git a/.rust2rpm.conf b/.rust2rpm.conf
new file mode 100644
index 0000000..e713601
--- /dev/null
+++ b/.rust2rpm.conf
@@ -0,0 +1,4 @@
+[DEFAULT]
+unwanted-features =
+  json
+  schemars
diff --git a/rust-ipnet.spec b/rust-ipnet.spec
index cb85952..99d9626 100644
--- a/rust-ipnet.spec
+++ b/rust-ipnet.spec
@@ -1,11 +1,11 @@
-# Generated by rust2rpm 17
+# Generated by rust2rpm 21
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate ipnet
 
 Name:           rust-%{crate}
-Version:        2.3.1
+Version:        2.4.0
 Release:        %autorelease
 Summary:        Provides types and useful methods for working with IP prefixes
 
@@ -15,11 +15,8 @@ URL:            https://crates.io/crates/ipnet
 Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
-%if %{__cargo_skip_build}
-BuildArch:      noarch
-%endif
 
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
 Provides types and useful methods for working with IPv4 and IPv6 network
@@ -39,13 +36,15 @@ 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
-%doc README.md RELEASES.md
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/LICENSE-APACHE
+%license %{crate_instdir}/LICENSE-MIT
+%doc %{crate_instdir}/README.md
+%doc %{crate_instdir}/RELEASES.md
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -53,11 +52,11 @@ 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}+serde-devel
 Summary:        %{summary}
@@ -65,11 +64,11 @@ BuildArch:      noarch
 
 %description -n %{name}+serde-devel %{_description}
 
-This package contains library source intended for building other packages
-which use "serde" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "serde" feature of the "%{crate}" crate.
 
 %files       -n %{name}+serde-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
diff --git a/sources b/sources
index 658834d..550b6e6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ipnet-2.3.1.crate) = db74ad4850e61b20b5280d0637a33a0a1dc2e3388bda38efbbdc221c04dfe04d304d57c3704fa68a824e65e8a3bdea2e743b2d0c2d06b1a8710c192cec1b6100
+SHA512 (ipnet-2.4.0.crate) = 8658cf15c500969f58b3515cca0f7d055b6060cc2978121f184d51e2ea7eb876fd36a947b41939a0d9929ce492b377d3502d69507ffe3f08507ca597eee2b689