diff --git a/derive_builder_core-fix-metadata.diff b/derive_builder_core-fix-metadata.diff
index ae10546..4ddd983 100644
--- a/derive_builder_core-fix-metadata.diff
+++ b/derive_builder_core-fix-metadata.diff
@@ -1,5 +1,14 @@
---- derive_builder_core-0.4.1/Cargo.toml	1970-01-01T01:00:00+01:00
-+++ derive_builder_core-0.4.1/Cargo.toml	2019-03-13T17:06:09.719840+01:00
+--- derive_builder_core-0.4.1/Cargo.toml	1970-01-01T00:00:00+00:00
++++ derive_builder_core-0.4.1/Cargo.toml	2019-03-25T18:38:30.051357+00:00
+@@ -20,7 +20,7 @@
+ license = "MIT/Apache-2.0"
+ repository = "https://github.com/colin-kiegel/rust-derive-builder"
+ [dependencies.darling]
+-version = "0.8.5"
++version = "0.9"
+ 
+ [dependencies.log]
+ version = "0.4"
 @@ -36,7 +36,7 @@
  version = "0.15"
  features = ["full", "extra-traits"]
diff --git a/rust-derive_builder_core.spec b/rust-derive_builder_core.spec
index 7264dfe..4db57d0 100644
--- a/rust-derive_builder_core.spec
+++ b/rust-derive_builder_core.spec
@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        0.4.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Internal helper library for the derive_builder crate
 
 # Upstream license specification: MIT/Apache-2.0
@@ -15,12 +15,13 @@ URL:            https://crates.io/crates/derive_builder_core
 Source:         %{crates_source}
 # Initial patched metadata
 # * Update pretty_assertions to 0.6, https://github.com/colin-kiegel/rust-derive-builder/pull/143
+# * Update darling to 0.9, https://github.com/colin-kiegel/rust-derive-builder/pull/144
 Patch0:         derive_builder_core-fix-metadata.diff
 
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
-BuildRequires:  (crate(darling/default) >= 0.8.5 with crate(darling/default) < 0.9.0)
+BuildRequires:  (crate(darling/default) >= 0.9.0 with crate(darling/default) < 0.10.0)
 BuildRequires:  (crate(proc-macro2/default) >= 0.4.0 with crate(proc-macro2/default) < 0.5.0)
 BuildRequires:  (crate(quote/default) >= 0.6.0 with crate(quote/default) < 0.7.0)
 BuildRequires:  (crate(syn/default) >= 0.15.0 with crate(syn/default) < 0.16.0)
@@ -101,5 +102,8 @@ which use "logging" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Mon Mar 25 19:38:30 CET 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.4.1-1
+- Update darling to 0.9
+
 * Wed Mar 13 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.4.1-1
 - Initial package