diff --git a/rand_pcg-fix-metadata.diff b/rand_pcg-fix-metadata.diff
new file mode 100644
index 0000000..c21a245
--- /dev/null
+++ b/rand_pcg-fix-metadata.diff
@@ -0,0 +1,23 @@
+--- rand_pcg-0.1.1/Cargo.toml	1970-01-01T01:00:00+01:00
++++ rand_pcg-0.1.1/Cargo.toml	2018-12-12T08:18:37.666798+01:00
+@@ -23,9 +23,9 @@
+ categories = ["algorithms", "no-std"]
+ license = "MIT/Apache-2.0"
+ repository = "https://github.com/rust-random/small-rngs"
+-[dependencies.bincode]
++[dev-dependencies.bincode]
+ version = "1"
+-optional = true
++features = ["i128"]
+ 
+ [dependencies.rand_core]
+ version = "0.3"
+@@ -42,7 +42,7 @@
+ version = "0.2"
+ 
+ [features]
+-serde1 = ["serde", "serde_derive", "bincode/i128"]
++serde1 = ["serde", "serde_derive"]
+ [badges.appveyor]
+ repository = "rust-random/small-rngs"
+ 
diff --git a/rust-rand_pcg.spec b/rust-rand_pcg.spec
index ffcd4dd..b873a7b 100644
--- a/rust-rand_pcg.spec
+++ b/rust-rand_pcg.spec
@@ -7,23 +7,28 @@
 
 Name:           rust-%{crate}
 Version:        0.1.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Selected PCG random number generators
 
 # Upstream license specification: MIT/Apache-2.0
 License:        MIT or ASL 2.0
 URL:            https://crates.io/crates/rand_pcg
 Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
+# Initial patched metadata
+# * Mark bincode as dev-dependency, https://github.com/rust-random/rand/issues/663
+Patch0:         rand_pcg-fix-metadata.diff
 
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
-BuildRequires:  (crate(bincode/default) >= 1.0.0 with crate(bincode/default) < 2.0.0)
-BuildRequires:  (crate(bincode/i128) >= 1.0.0 with crate(bincode/i128) < 2.0.0)
 BuildRequires:  (crate(rand_core) >= 0.3.0 with crate(rand_core) < 0.4.0)
 BuildRequires:  (crate(rustc_version/default) >= 0.2.0 with crate(rustc_version/default) < 0.3.0)
 BuildRequires:  (crate(serde/default) >= 1.0.0 with crate(serde/default) < 2.0.0)
 BuildRequires:  (crate(serde_derive/default) >= 1.0.38 with crate(serde_derive/default) < 2.0.0)
+%if %{with check}
+BuildRequires:  (crate(bincode/default) >= 1.0.0 with crate(bincode/default) < 2.0.0)
+BuildRequires:  (crate(bincode/i128) >= 1.0.0 with crate(bincode/i128) < 2.0.0)
+%endif
 
 %global _description \
 Selected PCG random number generators.
@@ -56,18 +61,6 @@ which use "default" feature of "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
-%package     -n %{name}+bincode-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+bincode-devel %{_description}
-
-This package contains library source intended for building other packages
-which use "bincode" feature of "%{crate}" crate.
-
-%files       -n %{name}+bincode-devel
-%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
-
 %package     -n %{name}+serde-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -120,6 +113,9 @@ which use "serde_derive" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Dec 12 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.1-3
+- Mark bincode as dev-dependency
+
 * Sat Dec 08 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.1-2
 - Run tests in infrastructure