diff --git a/SCons-4.5.1.tar.gz b/SCons-4.5.1.tar.gz
deleted file mode 100644
index c6f1bef..0000000
--- a/SCons-4.5.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:041ce69fec25f729c7ee108aab663b5f691bc2d1a5777e61f77ac9d1bfd20c58
-size 3194371
diff --git a/SCons-4.5.2.tar.gz b/SCons-4.5.2.tar.gz
new file mode 100644
index 0000000..6e5d4cf
--- /dev/null
+++ b/SCons-4.5.2.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ce26aac95d350a79a4192196b0beac3cb24f4ccabce0123eb28d3370f576f072
+size 3194724
diff --git a/scons.changes b/scons.changes
index adf54d5..1652357 100644
--- a/scons.changes
+++ b/scons.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Tue Mar 28 17:02:58 UTC 2023 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- SCons 4.5.2
+  * Fix a problem in 4.5.0/4.5.1 where ParseConfig could cause an
+    exception in MergeFlags when the result would be to add
+    preprocessor defines to existing CPPDEFINES
+
 -------------------------------------------------------------------
 Wed Mar  8 10:32:28 UTC 2023 - Andreas Stieger <andreas.stieger@gmx.de>
 
diff --git a/scons.spec b/scons.spec
index ae4ad15..c00d649 100644
--- a/scons.spec
+++ b/scons.spec
@@ -18,7 +18,7 @@
 
 %define pythons python3
 Name:           scons
-Version:        4.5.1
+Version:        4.5.2
 Release:        0
 Summary:        Replacement for Make
 License:        MIT