diff --git a/src/jrd/build_no.h b/src/jrd/build_no.h
index 57c439fd1f..d46ca9dbff 100644
--- a/src/jrd/build_no.h
+++ b/src/jrd/build_no.h
@@ -3,16 +3,16 @@
                *** DO NOT EDIT ***
   TO CHANGE ANY INFORMATION IN HERE PLEASE
   EDIT src/misc/writeBuildNum.sh
-  FORMAL BUILD NUMBER:2556
+  FORMAL BUILD NUMBER:2558
 */
 
-#define PRODUCT_VER_STRING "4.0.1.2556"
-#define FILE_VER_STRING "WI-V4.0.1.2556"
-#define LICENSE_VER_STRING "WI-V4.0.1.2556"
-#define FILE_VER_NUMBER 4, 0, 1, 2556
+#define PRODUCT_VER_STRING "4.0.1.2558"
+#define FILE_VER_STRING "WI-V4.0.1.2558"
+#define LICENSE_VER_STRING "WI-V4.0.1.2558"
+#define FILE_VER_NUMBER 4, 0, 1, 2558
 #define FB_MAJOR_VER "4"
 #define FB_MINOR_VER "0"
 #define FB_REV_NO "1"
-#define FB_BUILD_NO "2556"
+#define FB_BUILD_NO "2558"
 #define FB_BUILD_TYPE "V"
 #define FB_BUILD_SUFFIX "Firebird 4.0"
diff --git a/src/misc/writeBuildNum.sh b/src/misc/writeBuildNum.sh
index 02b08d672c..1008242267 100755
--- a/src/misc/writeBuildNum.sh
+++ b/src/misc/writeBuildNum.sh
@@ -9,7 +9,7 @@ BuildType=V
 MajorVer=4
 MinorVer=0
 RevNo=1
-BuildNum=2556
+BuildNum=2558
 
 NowAt=`pwd`
 cd `dirname $0`