diff --git a/CHANGELOG b/CHANGELOG
index 0730304..fb27c8e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,8 +1,12 @@
 CHANGELOG for the CCEAP tool
 
 current : latest commit on 2017-03-30
+ * (nothing so far; current==0.5.2)
+
+v. 0.5.2 : 2017-03-30
  * added code to compile CCEAP under MacOS (not officially supported)
  * performed additional small improvements within the documentation
+ * fix header dependency in Makefile for C object files
 
 v. 0.5.1 : 2017-02-03
  * performed additional improvements within documentation and Makefile
diff --git a/Makefile b/Makefile
index c0fab43..ce7eb73 100644
--- a/Makefile
+++ b/Makefile
@@ -36,7 +36,7 @@ BUILDFLAGS=-O
 SERVERBUILDFLAGS=-lm
 .SUFFIXES : .c .o
 
-.c.o : $(HEADERS)
+%.o : %.c  $(HEADERS)
 	$(CC) $(CFLAGS) $<
 
 all : $(OBJECTS)
diff --git a/main.h b/main.h
index 8b7cbd8..bb466e5 100644
--- a/main.h
+++ b/main.h
@@ -48,7 +48,7 @@
 #include <math.h>
 #include <time.h>
 
-#define CCEAP_VER	"0.5.1"
+#define CCEAP_VER	"0.5.2"
 #define CCEAP_AUTHOR	"Steffen Wendzel, www.wendzel.de"
 #define ERR_EXIT	2
 #define OK_EXIT		0