diff --git a/ugrep-5.0.0.tar.gz b/ugrep-5.0.0.tar.gz
deleted file mode 100644
index 5da1243..0000000
--- a/ugrep-5.0.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4c1dbf338bfed337fe53df0f685894c2a27d4a4fed236ebb3491441c2ccbec65
-size 6243737
diff --git a/ugrep-5.1.0.tar.gz b/ugrep-5.1.0.tar.gz
new file mode 100644
index 0000000..c5d1e76
--- /dev/null
+++ b/ugrep-5.1.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a8ac8dfaaf67d082d03bad58e91888256eddf5584e8ebb852b3c16591f4b6b65
+size 6237377
diff --git a/ugrep.changes b/ugrep.changes
index 2c9fbc6..714aabb 100644
--- a/ugrep.changes
+++ b/ugrep.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Sat Mar  9 19:44:47 UTC 2024 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- update to 5.1.0:
+  * a minor improvement of the regex syntax to allow escaped spaces
+  * updated POSIX regex lazy quantifier matching in linear time
+    using an advanced DFA transformation algorithm
+
 -------------------------------------------------------------------
 Sat Feb 17 10:56:22 UTC 2024 - Andreas Stieger <andreas.stieger@gmx.de>
 
diff --git a/ugrep.spec b/ugrep.spec
index 9928507..3c91412 100644
--- a/ugrep.spec
+++ b/ugrep.spec
@@ -18,7 +18,7 @@
 
 
 Name:           ugrep
-Version:        5.0.0
+Version:        5.1.0
 Release:        0
 Summary:        Universal grep: a feature-rich grep implementation with focus on speed
 License:        BSD-3-Clause