diff --git a/rust-num-bigint.spec b/rust-num-bigint.spec
index e6153b7..d9df9dc 100644
--- a/rust-num-bigint.spec
+++ b/rust-num-bigint.spec
@@ -6,25 +6,21 @@
 
 Name:           rust-%{crate}
 Version:        0.2.2
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Big integer implementation for Rust
 
 # Upstream license specification: MIT/Apache-2.0
 License:        MIT or ASL 2.0
 URL:            https://crates.io/crates/num-bigint
-Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
+Source:         %{crates_source}
 
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
 BuildRequires:  (crate(num-integer) >= 0.1.39 with crate(num-integer) < 0.2.0)
-BuildRequires:  (crate(num-integer/i128) >= 0.1.39 with crate(num-integer/i128) < 0.2.0)
 BuildRequires:  (crate(num-integer/std) >= 0.1.39 with crate(num-integer/std) < 0.2.0)
 BuildRequires:  (crate(num-traits) >= 0.2.4 with crate(num-traits) < 0.3.0)
-BuildRequires:  (crate(num-traits/i128) >= 0.2.4 with crate(num-traits/i128) < 0.3.0)
 BuildRequires:  (crate(num-traits/std) >= 0.2.4 with crate(num-traits/std) < 0.3.0)
-BuildRequires:  (crate(rand/std) >= 0.5.0 with crate(rand/std) < 0.6.0)
-BuildRequires:  (crate(serde/std) >= 1.0.0 with crate(serde/std) < 2.0.0)
 %if %{with check}
 BuildRequires:  (crate(serde_test/default) >= 1.0.0 with crate(serde_test/default) < 2.0.0)
 %endif
@@ -41,7 +37,7 @@ BuildArch:      noarch
 %description    devel %{_description}
 
 This package contains library source intended for building other packages
-which use %{crate} from crates.io.
+which use "%{crate}" crate.
 
 %files          devel
 %license LICENSE-MIT LICENSE-APACHE
@@ -109,7 +105,7 @@ which use "std" feature of "%{crate}" crate.
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
 %prep
-%autosetup -n %{crate}-%{version} -p1
+%autosetup -n %{crate}-%{version_no_tilde} -p1
 %cargo_prep
 
 %build
@@ -124,6 +120,9 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sat Mar 16 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.2.2-4
+- Do not pull optional dependencies
+
 * Sat Feb 09 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.2.2-3
 - Run tests in infrastructure