diff --git a/.gitignore b/.gitignore
index 8359579..2e924cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-/crypto-81372b2.tar.gz
+/crypto-e4e2799.tar.gz
diff --git a/golang-googlecode-go-crypto.spec b/golang-googlecode-go-crypto.spec
index 0912195..00b41b7 100644
--- a/golang-googlecode-go-crypto.spec
+++ b/golang-googlecode-go-crypto.spec
@@ -19,7 +19,7 @@
 # Build with debug info rpm
 %global with_debug 0
 # Run tests in check section
-%global with_check 0
+%global with_check 1
 # Generate unit-test rpm
 %global with_unit_test 1
 
@@ -36,7 +36,7 @@
 # https://github.com/golang/crypto
 %global provider_prefix %{provider}.%{provider_tld}/%{project}/%{repo}
 %global import_path     golang.org/x/crypto
-%global commit          81372b2fc2f10bef2a7f338da115c315a56b2726
+%global commit          e4e2799dd7aab89f583e1d898300d96367750991
 %global shortcommit     %(c=%{commit}; echo ${c:0:7})
 
 %global gc_import_path     code.google.com/p/go.crypto
@@ -49,7 +49,7 @@
 
 Name:           golang-googlecode-go-crypto
 Version:        0
-Release:        0.14.git%{shortcommit}%{?dist}
+Release:        0.15.git%{shortcommit}%{?dist}
 Summary:        Supplementary Go cryptography libraries
 License:        BSD
 URL:            https://%{provider_prefix}
@@ -79,9 +79,13 @@ Requires: golang(golang.org/x/net/context/ctxhttp)
 Provides:      golang(%{gc_import_path}/acme) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/acme/autocert) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/bcrypt) = %{version}-%{release}
+Provides:      golang(%{gc_import_path}/blake2b) = %{version}-%{release}
+Provides:      golang(%{gc_import_path}/blake2s) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/blowfish) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/bn256) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/cast5) = %{version}-%{release}
+Provides:      golang(%{gc_import_path}/chacha20poly1305) = %{version}-%{release}
+Provides:      golang(%{gc_import_path}/cryptobyte) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/curve25519) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/ed25519) = %{version}-%{release}
 Provides:      golang(%{gc_import_path}/hkdf) = %{version}-%{release}
@@ -129,17 +133,23 @@ BuildArch:     noarch
 %if 0%{?with_check}
 BuildRequires: golang(golang.org/x/net/context)
 BuildRequires: golang(golang.org/x/net/context/ctxhttp)
+BuildRequires: golang(golang.org/x/sys/unix)
 %endif
 
 Requires: golang(golang.org/x/net/context)
 Requires: golang(golang.org/x/net/context/ctxhttp)
+Requires: golang(golang.org/x/sys/unix)
 
 Provides:      golang(%{import_path}/acme) = %{version}-%{release}
 Provides:      golang(%{import_path}/acme/autocert) = %{version}-%{release}
 Provides:      golang(%{import_path}/bcrypt) = %{version}-%{release}
+Provides:      golang(%{import_path}/blake2b) = %{version}-%{release}
+Provides:      golang(%{import_path}/blake2s) = %{version}-%{release}
 Provides:      golang(%{import_path}/blowfish) = %{version}-%{release}
 Provides:      golang(%{import_path}/bn256) = %{version}-%{release}
 Provides:      golang(%{import_path}/cast5) = %{version}-%{release}
+Provides:      golang(%{import_path}/chacha20poly1305) = %{version}-%{release}
+Provides:      golang(%{import_path}/cryptobyte) = %{version}-%{release}
 Provides:      golang(%{import_path}/curve25519) = %{version}-%{release}
 Provides:      golang(%{import_path}/ed25519) = %{version}-%{release}
 Provides:      golang(%{import_path}/hkdf) = %{version}-%{release}
@@ -212,7 +222,7 @@ install -d -p %{buildroot}/%{gopath}/src/%{import_path}/
 echo "%%dir %%{gopath}/src/%%{import_path}/." >> devel.file-list
 install -d -p %{buildroot}/%{gopath}/src/%{gc_import_path}/
 echo "%%dir %%{gopath}/src/%%{gc_import_path}/." >> gc_devel.file-list
-for ext in go s; do
+for ext in go s h; do
 	# find all *.go but no *_test.go files and generate devel.file-list
 	for file in $(find . -iname "*.$ext" \! -iname "*_test.go") ; do
 	    install -d -p %{buildroot}/%{gopath}/src/%{import_path}/$(dirname $file)
@@ -314,6 +324,10 @@ export GOPATH=%{buildroot}/%{gopath}:$(pwd)/Godeps/_workspace:%{gopath}
 %endif
 
 %changelog
+* Tue Jul 25 2017 Jan Chaloupka <jchaloup@redhat.com> - 0-0.15.gite4e2799
+- Bump to upstream e4e2799dd7aab89f583e1d898300d96367750991
+  resolves: #1474536
+
 * Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0-0.14.git81372b2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
 
diff --git a/sources b/sources
index 7ec4742..507664d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (crypto-81372b2.tar.gz) = fb98474d0e0c48bbc88b18804fc8a257d8f051b7bed4a12d79fe1ed204cbdeca2dd0b94dd575dbbe6a5a9cae32f34f54921a86139721617e3f7d1b73236e7cb8
+SHA512 (crypto-e4e2799.tar.gz) = 7986db9fdc652c1f3ea4d9607c517eef21d734b31f27bea63e7ff35fa75b406086e58eaf201594c472a9eadbc10458ccac97fbc1dcbd65b88698a5b4c03d90f3