diff --git a/tre.spec b/tre.spec
index f4e991f..1a65b41 100644
--- a/tre.spec
+++ b/tre.spec
@@ -21,44 +21,43 @@
 Name:           tre
 Version:        0.9.0
 Release:        0
-Summary:        POSIX compatible regexp library with approximate matching
+Summary:        POSIX-compatible regexp library with approximate matching
 License:        BSD-3-Clause
-Group:          System/Libraries
+Group:          Development/Libraries/C and C++
 URL:            https://laurikari.net/tre/
 Source0:        https://github.com/laurikari/tre/releases/download/v%{version}/%{name}-%{version}.tar.gz
 BuildRequires:  glibc-locale
 %lang_package -n libtre%{sover}
 
 %description
-TRE is a lightweight, robust, and efficient POSIX compatible regexp
-matching library with some exciting features such as approximate
-matching.
+TRE is a POSIX-compatible regexp matching library with approximate
+(fuzzy) matching.
 
 %package -n libtre%{sover}
-Summary:        POSIX compatible regexp library with approximate matching
+Summary:        POSIX-compatible regexp library with approximate matching
 Group:          System/Libraries
 
 %description -n libtre%{sover}
-TRE is a lightweight, robust, and efficient POSIX compatible regexp
-matching library with some exciting features such as approximate
-matching.
+TRE is a POSIX-compatible regexp matching library with approximate
+(fuzzy) matching. TRE's algorithm has linear worst-case time in the
+length of the text being searched, and quadratic worst-case time in
+the length of the used regular expression.
 
 %package devel
-Summary:        POSIX compatible regexp library with approximate matching
+Summary:        Header files for the TRE regex library
 Group:          Development/Libraries/C and C++
 Requires:       libtre%{sover} = %{version}
 
 %description devel
-TRE is a lightweight, robust, and efficient POSIX compatible regexp
-matching library with some exciting features such as approximate
-matching.
+TRE is a POSIX-compatible regexp matching library with approximate
+This package contains the headers.
 
 %package -n agrep
-Summary:        Another powerful grep with interesting features
+Summary:        Another grep with approximate matching and block search
 Group:          Productivity/Text/Utilities
 
 %description -n agrep
-agrep is another powerful grep which has the  ability to search for
+agrep is a grep utility which has the ability to search for
 approximate patterns as well as block oriented search.
 
 %prep