diff --git a/ChangeLog b/ChangeLog
index 3ff93cb602..bafbfaa9f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jun  3 00:26:48 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* marshal.c (w_object): add a check for modification of array during
+	  its dump.
+
 Mon Jun  2 22:27:57 2008  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* enc/iso_8859_5.c: Large omicron should lowercase to small omicron.
diff --git a/marshal.c b/marshal.c
index fda961fdf2..9f22cdcc88 100644
--- a/marshal.c
+++ b/marshal.c
@@ -703,13 +703,14 @@ w_object(VALUE obj, struct dump_arg *arg, int limit)
 	    w_uclass(obj, rb_cArray, arg);
 	    w_byte(TYPE_ARRAY, arg);
 	    {
-		long len = RARRAY_LEN(obj);
-		VALUE *ptr = RARRAY_PTR(obj);
+		long i, len = RARRAY_LEN(obj);
 
 		w_long(len, arg);
-		while (len--) {
-		    w_object(*ptr, arg, limit);
-		    ptr++;
+		for (i=0; i<RARRAY_LEN(obj); i++) {
+		    w_object(RARRAY_PTR(obj)[i], arg, limit);
+		    if (len != RARRAY_LEN(obj)) {
+			rb_raise(rb_eRuntimeError, "array modified during dump");
+		    }
 		}
 	    }
 	    break;
diff --git a/version.h b/version.h
index 2521e9c530..b3f4010281 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2008-06-02"
+#define RUBY_RELEASE_DATE "2008-06-03"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20080602
+#define RUBY_RELEASE_CODE 20080603
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2008
 #define RUBY_RELEASE_MONTH 6
-#define RUBY_RELEASE_DAY 2
+#define RUBY_RELEASE_DAY 3
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];