diff --git a/rust-num-complex.spec b/rust-num-complex.spec
index adb6815..eac5adb 100644
--- a/rust-num-complex.spec
+++ b/rust-num-complex.spec
@@ -6,22 +6,19 @@
 
 Name:           rust-%{crate}
 Version:        0.2.1
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Complex numbers implementation for Rust
 
 # Upstream license specification: MIT/Apache-2.0
 License:        MIT or ASL 2.0
 URL:            https://crates.io/crates/num-complex
-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-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) >= 0.5.0 with crate(rand) < 0.6.0)
-BuildRequires:  (crate(serde) >= 1.0.0 with crate(serde) < 2.0.0)
 
 %global _description \
 Complex numbers implementation for Rust.
@@ -103,7 +100,7 @@ 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
@@ -118,6 +115,9 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sat Mar 16 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.2.1-6
+- Do not pull optional dependencies
+
 * Sat Feb 09 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.2.1-5
 - Run tests in infrastructure