diff --git a/.gitignore b/.gitignore
index da25eef..37b2fb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /sha2-0.8.0.crate
+/sha2-0.8.1.crate
diff --git a/rust-sha2.spec b/rust-sha2.spec
index e69998f..3814acf 100644
--- a/rust-sha2.spec
+++ b/rust-sha2.spec
@@ -1,12 +1,12 @@
-# Generated by rust2rpm 10
+# Generated by rust2rpm 13
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate sha2
 
 Name:           rust-%{crate}
-Version:        0.8.0
-Release:        3%{?dist}
+Version:        0.8.1
+Release:        1%{?dist}
 Summary:        SHA-2 hash functions
 
 # Upstream license specification: MIT OR Apache-2.0
@@ -15,6 +15,7 @@ URL:            https://crates.io/crates/sha2
 Source:         %{crates_source}
 # Initial patched metadata
 # * Update hex-literal to 0.2, https://github.com/RustCrypto/hashes/pull/85
+# * Remove unstable asm features
 Patch0:         sha2-fix-metadata.diff
 
 ExclusiveArch:  %{rust_arches}
@@ -40,7 +41,7 @@ which use "%{crate}" crate.
 
 %files          devel
 %license LICENSE-MIT LICENSE-APACHE
-%{cargo_registry}/%{crate}-%{version}/
+%{cargo_registry}/%{crate}-%{version_no_tilde}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -52,31 +53,7 @@ This package contains library source intended for building other packages
 which use "default" feature of "%{crate}" crate.
 
 %files       -n %{name}+default-devel
-%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
-
-%package     -n %{name}+asm-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+asm-devel %{_description}
-
-This package contains library source intended for building other packages
-which use "asm" feature of "%{crate}" crate.
-
-%files       -n %{name}+asm-devel
-%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
-
-%package     -n %{name}+sha2-asm-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+sha2-asm-devel %{_description}
-
-This package contains library source intended for building other packages
-which use "sha2-asm" feature of "%{crate}" crate.
-
-%files       -n %{name}+sha2-asm-devel
-%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
 %package     -n %{name}+std-devel
 Summary:        %{summary}
@@ -88,7 +65,7 @@ This package contains library source intended for building other packages
 which use "std" feature of "%{crate}" crate.
 
 %files       -n %{name}+std-devel
-%ghost %{cargo_registry}/%{crate}-%{version}/Cargo.toml
+%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
@@ -109,6 +86,9 @@ which use "std" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Tue Jan 07 2020 Josh Stone <jistone@redhat.com> - 0.8.1-1
+- Update to 0.8.1
+
 * Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.8.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/sha2-fix-metadata.diff b/sha2-fix-metadata.diff
index df57fee..0e2c36d 100644
--- a/sha2-fix-metadata.diff
+++ b/sha2-fix-metadata.diff
@@ -1,6 +1,21 @@
---- sha2-0.8.0/Cargo.toml	1970-01-01T00:00:00+00:00
-+++ sha2-0.8.0/Cargo.toml	2019-06-21T18:05:55.064467+00:00
-@@ -40,7 +40,7 @@
+--- sha2-0.8.1/Cargo.toml	2020-01-06T02:55:40+00:00
++++ sha2-0.8.1/Cargo.toml	2020-01-07T18:11:28.488572+00:00
+@@ -29,26 +29,17 @@
+ [dependencies.fake-simd]
+ version = "0.1"
+ 
+-[dependencies.libc]
+-version = "0.2"
+-optional = true
+-
+ [dependencies.opaque-debug]
+ version = "0.2"
+ 
+-[dependencies.sha2-asm]
+-version = "0.5"
+-optional = true
+ [dev-dependencies.digest]
+ version = "0.8"
  features = ["dev"]
  
  [dev-dependencies.hex-literal]
@@ -8,4 +23,8 @@
 +version = "0.2"
  
  [features]
- asm = ["sha2-asm"]
+-asm = ["sha2-asm"]
+-asm-aarch64 = ["asm", "libc"]
+ default = ["std"]
+ std = ["digest/std"]
+ [badges.travis-ci]
diff --git a/sources b/sources
index 8265c22..89a0114 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (sha2-0.8.0.crate) = 6d95888b40c7f84b245864891d4a3e8c06ed3e0cde1aaeacde2ef75c969e00b524fe6045aa9b978d0036b315cc74502f88aab0da67c6708b2450efa9119abdad
+SHA512 (sha2-0.8.1.crate) = b2de5cd8476b7c709fad0996c2e0c7bf577e077e7d5f70c47b780fb41c7cf8e75d156958a5519a7cac9f390d91b4c044590ecc9be0953e0632f54e7c063109ad