diff --git a/Changelog.md b/Changelog.md
index a06ca42..3ff9006 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,13 +1,13 @@
 # Changelog
 
-
-
 ## 2.0.0
 - Support for DZRP 2.0.0 (long addresses)
 - Output of DZRP version at the start of the DLL.
-- Switched to CSpect 2.12.37
 - Corrected length while receiving.
 
+# 1.5.1
+- Support for CSpect 2.13.0
+
 ## 1.5.0
 - Removed 'DoGetPatternsInTick'
 - Switched to CSpect 2.12.34