diff --git a/attest-tools.spec b/attest-tools.spec
index 40017e9..e2ef299 100644
--- a/attest-tools.spec
+++ b/attest-tools.spec
@@ -1,6 +1,6 @@
 name:           attest-tools
-Version:        0.2.90
-Release:        2
+Version:        0.2.91
+Release:        1
 Summary:        Attestation tools
 
 Source0:        https://gitee.com/openeuler/%{name}/repository/archive/v%{version}.tar.gz
@@ -22,6 +22,13 @@ BuildRequires:  openssl-devel
 This package includes the tools to perform remote attestation with a quote
 or a TPM key.
 
+%package devel
+Summary: Development headers and libraries for %{name}
+Requires:%{name} = %{version}-%{release}
+
+%description devel
+This package includes the headers of the libraries.
+
 %prep
 %autosetup -n %{name}-%{version} -p1
 %setup -a 1 -n %{name}-%{version}
@@ -71,8 +78,15 @@ rm -rf $RPM_BUILD_ROOT
 %{_bindir}/ekcert_read.sh
 %{_bindir}/attest_parse_json
 
+%files devel
+%{_prefix}/include/attest-tools
 
 %changelog
+* Fri Nov 13 2020 Roberto Sassu <roberto.sassu@huawei.com> - 0.2.91-1
+- Update algorithm for boot_aggregate calculation
+- Install includes
+- Bug fixes
+
 * Mon Sep 14 2020 Roberto Sassu <roberto.sassu@huawei.com> - 0.2.90-2
 - Change Source0 in spec file
 
diff --git a/v0.2.90.tar.gz b/v0.2.90.tar.gz
deleted file mode 100644
index 28dc4fb..0000000
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diff --git a/v0.2.91.tar.gz b/v0.2.91.tar.gz
new file mode 100644
index 0000000..148b734
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