diff --git a/.gitignore b/.gitignore
index 5d8e280..b7a51a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /rand-0.5.4.crate
 /rand-0.5.5.crate
 /rand-0.6.1.crate
+/rand-0.6.4.crate
diff --git a/rand-fix-metadata.diff b/rand-fix-metadata.diff
index f259043..7acc6ef 100644
--- a/rand-fix-metadata.diff
+++ b/rand-fix-metadata.diff
@@ -1,47 +1,33 @@
---- rand-0.6.1/Cargo.toml	1970-01-01T01:00:00+01:00
-+++ rand-0.6.1/Cargo.toml	2018-12-03T14:32:52.470796+01:00
-@@ -30,11 +30,6 @@
+--- rand-0.6.4/Cargo.toml	1969-12-31T16:00:00-08:00
++++ rand-0.6.4/Cargo.toml	2019-01-10T09:32:09.837209-08:00
+@@ -28,11 +28,6 @@
+ all-features = true
+ [dependencies.log]
  version = "0.4"
- optional = true
- 
+-optional = true
+-
 -[dependencies.packed_simd]
 -version = "0.3"
 -features = ["into_bits"]
--optional = true
--
- [dependencies.rand_chacha]
- version = "0.1"
+ optional = true
  
-@@ -62,31 +57,12 @@
+ [dependencies.rand_chacha]
+@@ -69,18 +64,11 @@
  alloc = ["rand_core/alloc"]
- default = ["std"]
+ default = ["std", "rand_os"]
  i128_support = []
 -nightly = ["simd_support"]
  serde1 = ["rand_core/serde1", "rand_isaac/serde1", "rand_xorshift/serde1"]
 -simd_support = ["packed_simd"]
--std = ["rand_core/std", "alloc", "libc", "winapi", "cloudabi", "fuchsia-zircon"]
--[target."cfg(target_os = \"cloudabi\")".dependencies.cloudabi]
--version = "0.0.3"
--optional = true
--[target."cfg(target_os = \"fuchsia\")".dependencies.fuchsia-zircon]
--version = "0.3.2"
--optional = true
-+std = ["rand_core/std", "alloc", "libc"]
+ std = ["rand_core/std", "alloc", "rand_os"]
+-stdweb = ["rand_os/stdweb"]
+-wasm-bindgen = ["rand_os/wasm-bindgen"]
  [target."cfg(unix)".dependencies.libc]
  version = "0.2"
- optional = true
  default-features = false
 -[target."cfg(windows)".dependencies.winapi]
 -version = "0.3"
 -features = ["minwindef", "ntsecapi", "profileapi", "winnt"]
--optional = true
--[target.wasm32-unknown-unknown.dependencies.stdweb]
--version = "0.4"
--optional = true
--
--[target.wasm32-unknown-unknown.dependencies.wasm-bindgen]
--version = "0.2.12"
--optional = true
  [badges.appveyor]
  repository = "rust-random/rand"
  
diff --git a/rust-rand.spec b/rust-rand.spec
index a2fee2b..39ad49a 100644
--- a/rust-rand.spec
+++ b/rust-rand.spec
@@ -7,7 +7,7 @@
 
 Name:           rust-%{crate}
 Summary:        Random number generators and other randomness functionality
-Version:        0.6.1
+Version:        0.6.4
 Release:        1%{?dist}
 
 # Upstream license specification: MIT/Apache-2.0
@@ -21,6 +21,7 @@ Patch0:         rand-fix-metadata.diff
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
+BuildRequires:  (crate(autocfg/default) >= 0.1.0 with crate(autocfg/default) < 0.2.0)
 BuildRequires:  (crate(libc) >= 0.2.0 with crate(libc) < 0.3.0)
 BuildRequires:  (crate(log/default) >= 0.4.0 with crate(log/default) < 0.5.0)
 BuildRequires:  (crate(rand_chacha/default) >= 0.1.0 with crate(rand_chacha/default) < 0.2.0)
@@ -31,12 +32,13 @@ BuildRequires:  (crate(rand_core/std) >= 0.3.0 with crate(rand_core/std) < 0.4.0
 BuildRequires:  (crate(rand_hc/default) >= 0.1.0 with crate(rand_hc/default) < 0.2.0)
 BuildRequires:  (crate(rand_isaac/default) >= 0.1.0 with crate(rand_isaac/default) < 0.2.0)
 BuildRequires:  (crate(rand_isaac/serde1) >= 0.1.0 with crate(rand_isaac/serde1) < 0.2.0)
+BuildRequires:  (crate(rand_os/default) >= 0.1.0 with crate(rand_os/default) < 0.2.0)
 BuildRequires:  (crate(rand_pcg/default) >= 0.1.0 with crate(rand_pcg/default) < 0.2.0)
 BuildRequires:  (crate(rand_xorshift/default) >= 0.1.0 with crate(rand_xorshift/default) < 0.2.0)
 BuildRequires:  (crate(rand_xorshift/serde1) >= 0.1.0 with crate(rand_xorshift/serde1) < 0.2.0)
-BuildRequires:  (crate(rustc_version/default) >= 0.2.0 with crate(rustc_version/default) < 0.3.0)
 %if %{with check}
 BuildRequires:  (crate(average/default) >= 0.9.2 with crate(average/default) < 0.10.0)
+BuildRequires:  (crate(rand_xoshiro/default) >= 0.1.0 with crate(rand_xoshiro/default) < 0.2.0)
 %endif
 
 %global _description \
@@ -94,28 +96,28 @@ which use "i128_support" feature of "%{crate}" crate.
 %files       -n %{name}+i128_support-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
-%package     -n %{name}+libc-devel
+%package     -n %{name}+log-devel
 Summary:        %{summary}
 BuildArch:      noarch
 
-%description -n %{name}+libc-devel %{_description}
+%description -n %{name}+log-devel %{_description}
 
 This package contains library source intended for building other packages
-which use "libc" feature of "%{crate}" crate.
+which use "log" feature of "%{crate}" crate.
 
-%files       -n %{name}+libc-devel
+%files       -n %{name}+log-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
-%package     -n %{name}+log-devel
+%package     -n %{name}+rand_os-devel
 Summary:        %{summary}
 BuildArch:      noarch
 
-%description -n %{name}+log-devel %{_description}
+%description -n %{name}+rand_os-devel %{_description}
 
 This package contains library source intended for building other packages
-which use "log" feature of "%{crate}" crate.
+which use "rand_os" feature of "%{crate}" crate.
 
-%files       -n %{name}+log-devel
+%files       -n %{name}+rand_os-devel
 %ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
 
 %package     -n %{name}+serde1-devel
@@ -158,6 +160,9 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Thu Jan 10 2019 Josh Stone <jistone@redhat.com> - 0.6.4-1
+- Update to 0.6.4
+
 * Mon Dec 03 2018 Igor Gnatenko <ignatenkobrian@fedoraproject.org> - 0.6.1-1
 - Update to 0.6.1
 
diff --git a/sources b/sources
index fcea982..c252bd9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (rand-0.6.1.crate) = dab500d25d538d28bac5b9b60e3b262f64e9d0581c5c17f165890497f7cb459603b815e8a43451610e75d8f5390aa41aad57dcb532307c479ebb99f475f4d4a4
+SHA512 (rand-0.6.4.crate) = 2b98ba7edce4b48833ca5d8c9cda25beb9f73fd22adb997afdfb10d5c59e9240537baebc2e7de1e0094716009f7fe2b657d1f4dcb4c778e492e49483a7e3ce8b