diff --git a/.gitignore b/.gitignore
index 3203d66..33689ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /criterion-plot-0.3.0.crate
 /criterion-plot-0.3.1.crate
+/criterion-plot-0.4.0.crate
diff --git a/rust-criterion-plot.spec b/rust-criterion-plot.spec
index 74e1ff0..34723fb 100644
--- a/rust-criterion-plot.spec
+++ b/rust-criterion-plot.spec
@@ -1,12 +1,12 @@
-# Generated by rust2rpm
-%bcond_with check
+# Generated by rust2rpm 10
+%bcond_without check
 %global debug_package %{nil}
 
 %global crate criterion-plot
 
 Name:           rust-%{crate}
-Version:        0.3.1
-Release:        2%{?dist}
+Version:        0.4.0
+Release:        1%{?dist}
 Summary:        Criterion's plotting library
 
 # Upstream license specification: MIT/Apache-2.0
@@ -15,19 +15,14 @@ URL:            https://crates.io/crates/criterion-plot
 Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
+%if %{__cargo_skip_build}
+BuildArch:      noarch
+%endif
 
 BuildRequires:  rust-packaging
-BuildRequires:  (crate(byteorder/default) >= 1.0.0 with crate(byteorder/default) < 2.0.0)
-BuildRequires:  (crate(cast/default) >= 0.2.0 with crate(cast/default) < 0.3.0)
-BuildRequires:  (crate(itertools/default) >= 0.8.0 with crate(itertools/default) < 0.9.0)
-%if %{with check}
-BuildRequires:  (crate(itertools-num/default) >= 0.1.0 with crate(itertools-num/default) < 0.2.0)
-BuildRequires:  (crate(num-complex/std) >= 0.2.0 with crate(num-complex/std) < 0.3.0)
-BuildRequires:  (crate(rand/default) >= 0.4.0 with crate(rand/default) < 0.5.0)
-%endif
 
-%global _description \
-Criterion's plotting library.
+%global _description %{expand:
+Criterion's plotting library.}
 
 %description %{_description}
 
@@ -64,6 +59,9 @@ which use "default" feature of "%{crate}" crate.
 # Remove extraneous executable bits
 find . -type f -executable -exec chmod 0644 "{}" +;
 
+%generate_buildrequires
+%cargo_generate_buildrequires
+
 %build
 %cargo_build
 
@@ -76,6 +74,9 @@ find . -type f -executable -exec chmod 0644 "{}" +;
 %endif
 
 %changelog
+* Sat Sep 14 18:38:42 CEST 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.4.0-1
+- Update to 0.4.0
+
 * Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/sources b/sources
index 72d406d..7524664 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (criterion-plot-0.3.1.crate) = 52b95d4e8c9909324547b00eb4ae98c274ce22a8494730f117c5530f3cfadd600aa22484730489c5e5202dc248ef40502a9768f172d5303919e430bcc0625b5c
+SHA512 (criterion-plot-0.4.0.crate) = 06e46dd31ebdd83621bab4b108892b366566ca6819db4a7832cb24fe5bb2155ce086ec97f282a6fb5aa1e1103de2c2d8a42a69b71af20cd62f49e51994c21864