diff --git a/VERSION b/VERSION
index d5c0c991..87ce4929 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.5.1
+3.5.2
diff --git a/changelog.md b/changelog.md
index 944da5a4..eb2804cb 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,6 +1,10 @@
 # IsoQuant changelog
 
-## IsoQuant 3.5.0, 26 August 2024
+## IsoQuant 3.5.2, 3 September 2024
+
+- Fix exon counting algorithm [#229](https://github.com/ablab/IsoQuant/issues/229).
+
+## IsoQuant 3.5.1, 26 August 2024
 
 - Fix YAML support in visualization [#222](https://github.com/ablab/IsoQuant/issues/222).