diff --git a/.gitignore b/.gitignore
index 48ec5b0..d32d625 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /slab-0.4.0.crate
 /slab-0.4.1.crate
 /slab-0.4.2.crate
+/slab-0.4.3.crate
diff --git a/rust-slab.spec b/rust-slab.spec
index 1d97d4d..2189c01 100644
--- a/rust-slab.spec
+++ b/rust-slab.spec
@@ -1,12 +1,12 @@
-# Generated by rust2rpm 10
+# Generated by rust2rpm 17
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate slab
 
 Name:           rust-%{crate}
-Version:        0.4.2
-Release:        9%{?dist}
+Version:        0.4.3
+Release:        1%{?dist}
 Summary:        Pre-allocated storage for a uniform data type
 
 # Upstream license specification: MIT
@@ -38,7 +38,7 @@ which use "%{crate}" crate.
 %files          devel
 %license LICENSE
 %doc README.md
-%{cargo_registry}/%{crate}-%{version}/
+%{cargo_registry}/%{crate}-%{version_no_tilde}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -50,7 +50,31 @@ This package contains library source intended for building other packages
 which use "default" feature of "%{crate}" crate.
 
 %files       -n %{name}+default-devel
-%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
+%package     -n %{name}+serde-devel
+Summary:        %{summary}
+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.
+
+%files       -n %{name}+serde-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 "std" feature of "%{crate}" crate.
+
+%files       -n %{name}+std-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
@@ -71,6 +95,10 @@ which use "default" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Apr 21 2021 Fabio Valentini <decathorpe@gmail.com> - 0.4.3-1
+- Update to version 0.4.3.
+- Fixes RHBZ#1951676
+
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.2-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 6ddc8c9..b6faa23 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (slab-0.4.2.crate) = f9fd70d0cc5180393cebbe87fe984de0c103db1c2c2648fb7a0ee22cdabf37a7338fd511538f00e9a5564365cce2879afe19bf77c435870197bd6cafef5d6661
+SHA512 (slab-0.4.3.crate) = 8649f32f26c1354b3281534fa0e062a145b62813c46f9ff5989ae688154221b00ed1b8c044c67a4b78c00a2e3478a8eb9c1c96fb424c24cd6cefd4df875fbb15