diff --git a/libnettle.spec b/libnettle.spec
index 6cbb77f..b634533 100644
--- a/libnettle.spec
+++ b/libnettle.spec
@@ -1,5 +1,5 @@
 Name:          libnettle
-Version:       3.7.1
+Version:       3.7.2
 Release:       1mamba
 Summary:       A cryptographic library that is designed to fit easily in more or less any context
 Group:         System/Libraries
@@ -15,7 +15,6 @@ BuildRequires: libgmp-devel
 BuildRequires: pkg-config
 ## AUTOBUILDREQ-END
 Requires(post): %{__install_info}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Nettle is a cryptographic library that is designed to fit easily in more or less any context: In crypto toolkits for object-oriented languages (C++, Python, Pike, ...), in applications like LSH or GNUPG, or even in kernel space.
@@ -95,6 +94,9 @@ exit 0
 %{_bindir}/sexp-conv
 
 %changelog
+* Mon Mar 22 2021 Automatic Build System <autodist@mambasoft.it> 3.7.2-1mamba
+- automatic version update by autodist
+
 * Thu Feb 18 2021 Automatic Build System <autodist@mambasoft.it> 3.7.1-1mamba
 - automatic version update by autodist