diff --git a/.gitignore b/.gitignore
index 94638ce..e3ef8b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /hex-0.4.0.crate
 /hex-0.4.1.crate
 /hex-0.4.2.crate
+/hex-0.4.3.crate
diff --git a/rust-hex.spec b/rust-hex.spec
index 33f6524..77c9ea2 100644
--- a/rust-hex.spec
+++ b/rust-hex.spec
@@ -1,4 +1,4 @@
-# Generated by rust2rpm 13
+# Generated by rust2rpm 16
 # * faster-hex and rustc-hex are not packaged
 %bcond_with check
 %global debug_package %{nil}
@@ -6,8 +6,8 @@
 %global crate hex
 
 Name:           rust-%{crate}
-Version:        0.4.2
-Release:        3%{?dist}
+Version:        0.4.3
+Release:        1%{?dist}
 Summary:        Encoding and decoding data into/from hexadecimal representation
 
 # Upstream license specification: MIT OR Apache-2.0
@@ -53,6 +53,18 @@ which use "default" feature of "%{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 "alloc" feature of "%{crate}" crate.
+
+%files       -n %{name}+alloc-devel
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+
 %package     -n %{name}+serde-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -96,6 +108,10 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Mar 03 2021 Fabio Valentini <decathorpe@gmail.com> - 0.4.3-1
+- Update to version 0.4.3.
+- Fixes RHBZ#1934512
+
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 2127fe9..b3d42a8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (hex-0.4.2.crate) = b37504fa6e41caa77c924b24893a7b505330aa8c39501b3ac283fbdffa9af2b89ccb9ae004ff415af1c813fb3da222dba62f17bb3b6210a259661e2312d099a5
+SHA512 (hex-0.4.3.crate) = fd8ff33b68eea2d6f2c6b02a6d82a2807cbcdc209ca5a76e3e3e5d006917ee151f236b6d18e2646cc9a9674bcdda1d6ce6ee363a89cadd99bef00d0eea9989e6