diff --git a/NEWS b/NEWS
index 137ea6c4..704888ce 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,10 @@
 
+Version 0.5.6
+-------------
+
+- Includes security fixes for Expat XML parser (CVE-2017-11742).
+
+
 Version 0.5.5
 -------------
 
diff --git a/include/winsparkle-version.h b/include/winsparkle-version.h
index 87d524ee..76cab953 100644
--- a/include/winsparkle-version.h
+++ b/include/winsparkle-version.h
@@ -32,7 +32,7 @@
 
 #define WIN_SPARKLE_VERSION_MAJOR   0
 #define WIN_SPARKLE_VERSION_MINOR   5
-#define WIN_SPARKLE_VERSION_MICRO   5
+#define WIN_SPARKLE_VERSION_MICRO   6
 
 /**
     Checks if WinSparkle version is at least @a major.@a minor.@a micro.