Version bump.
diff --git a/src/njs.h b/src/njs.h
index 517a055..8851ba8 100644
--- a/src/njs.h
+++ b/src/njs.h
@@ -11,7 +11,7 @@
 
 #include <njs_auto_config.h>
 
-#define NJS_VERSION                 "0.5.2"
+#define NJS_VERSION                 "0.5.3"
 
 
 #include <unistd.h>                 /* STDOUT_FILENO, STDERR_FILENO */