diff --git a/libtpms-0.8.4.tar.gz b/libtpms-0.8.4.tar.gz
new file mode 100644
index 0000000..c7fbf8e
--- /dev/null
+++ b/libtpms-0.8.4.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5f8b0ed59d52fe22e7245a0d5909e33a72b4d2dac47ee877ea9ff3c307b2ed19
+size 1255255
diff --git a/libtpms.changes b/libtpms.changes
index cb1b8be..e787ed7 100644
--- a/libtpms.changes
+++ b/libtpms.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Sat Aug  7 15:00:32 UTC 2021 - Callum Farmer <gmbr3@opensuse.org>
+
+- Update to version 0.8.4:
+  * Reset too large size indicators in TPM2B to avoid access
+    beyond buffer
+  * Restore original value in buffer if unmarshalled one was
+    illegal
+
 -------------------------------------------------------------------
 Mon Apr 19 07:18:37 UTC 2021 - Gary Ching-Pang Lin <glin@suse.com>
 
diff --git a/libtpms.spec b/libtpms.spec
index 50c03b3..c1e7971 100644
--- a/libtpms.spec
+++ b/libtpms.spec
@@ -18,15 +18,16 @@
 
 %define lname libtpms0
 Name:           libtpms
-Version:        0.8.2
+Version:        0.8.4
 Release:        0
 Summary:        Library providing Trusted Platform Module (TPM) functionality
 License:        BSD-3-Clause
 Group:          Development/Libraries/C and C++
 URL:            https://github.com/stefanberger/libtpms
-Source0:        https://github.com/stefanberger/libtpms/archive/v%{version}.tar.gz
+Source0:        %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
 BuildRequires:  autoconf
 BuildRequires:  automake
+BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  libtool
 BuildRequires:  mozilla-nspr-devel
@@ -56,26 +57,24 @@ Requires:       mozilla-nspr-devel
 Libtpms header files and documentation.
 
 %prep
-%setup -q -n libtpms-%{version}
+%autosetup
 
 %build
-./bootstrap.sh
+autoreconf -fiv
 %configure \
 	--with-tpm2 \
 	--with-openssl	\
         --disable-static
 
-make %{?_smp_mflags}
-
-%check
-make %{?_smp_mflags} check
+%make_build
 
 %install
-install -d -m 0755 %{buildroot}%{_libdir}
-install -d -m 0755 %{buildroot}%{_includedir}/libtpms
-install -d -m 0755 %{buildroot}%{_mandir}/man3
-
 %make_install
+find %{buildroot} -type f -name "*.la" -delete -print
+%fdupes -s %{buildroot}
+
+%check
+%make_build check
 
 %post -n %{lname} -p /sbin/ldconfig
 %postun -n %{lname} -p /sbin/ldconfig
@@ -83,15 +82,12 @@ install -d -m 0755 %{buildroot}%{_mandir}/man3
 %files -n %{lname}
 %doc README CHANGES
 %license LICENSE
-%{_libdir}/%{name}.so.%{version}
-%{_libdir}/%{name}.so.0
+%{_libdir}/%{name}.so.*
 
 %files devel
 %{_libdir}/%{name}.so
-%{_libdir}/%{name}.la
-%dir %{_includedir}/%{name}
-%attr(644, root, root) %{_libdir}/pkgconfig/*.pc
-%attr(644, root, root) %{_includedir}/%{name}/*.h
-%attr(644, root, root) %{_mandir}/man3/*
+%{_includedir}/%{name}
+%{_libdir}/pkgconfig/*.pc
+%{_mandir}/man3/*%{?ext_man}
 
 %changelog
diff --git a/v0.8.2.tar.gz b/v0.8.2.tar.gz
deleted file mode 100644
index 50f80e5..0000000
--- a/v0.8.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:3c533017b4eee60d907409ee39ad6f1cd0380c2ceabf583f1749a73ea87e9d3e
-size 1253915