diff --git a/src/interfaces/ecpg/compatlib/Makefile b/src/interfaces/ecpg/compatlib/Makefile
index c8e294a3a377bc27c01eeaab087edcad6e9021c4..2aebef7e65f47facd4e43ee1fd70a0ed7d391262 100644
--- a/src/interfaces/ecpg/compatlib/Makefile
+++ b/src/interfaces/ecpg/compatlib/Makefile
@@ -15,7 +15,7 @@ include $(top_builddir)/src/Makefile.global
 
 NAME= ecpg_compat
 SO_MAJOR_VERSION= 3
-SO_MINOR_VERSION= 4
+SO_MINOR_VERSION= 5
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
 	-I$(libpq_srcdir) -I$(top_srcdir)/src/include/utils $(CPPFLAGS)
diff --git a/src/interfaces/ecpg/ecpglib/Makefile b/src/interfaces/ecpg/ecpglib/Makefile
index 582e8ce7929c9da5ca5d3dfe92024f7c230a73e5..565df3c7357249dc704587b6a1277a3904447089 100644
--- a/src/interfaces/ecpg/ecpglib/Makefile
+++ b/src/interfaces/ecpg/ecpglib/Makefile
@@ -15,7 +15,7 @@ include $(top_builddir)/src/Makefile.global
 
 NAME= ecpg
 SO_MAJOR_VERSION= 6
-SO_MINOR_VERSION= 4
+SO_MINOR_VERSION= 5
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
 	-I$(libpq_srcdir) -I$(top_builddir)/src/port $(CPPFLAGS)
diff --git a/src/interfaces/ecpg/pgtypeslib/Makefile b/src/interfaces/ecpg/pgtypeslib/Makefile
index 41f7cc0a874a382aee26536aa651157a4649fe67..86ecedfc6bd4ebfb6592abc167bab06233f9e1a1 100644
--- a/src/interfaces/ecpg/pgtypeslib/Makefile
+++ b/src/interfaces/ecpg/pgtypeslib/Makefile
@@ -15,7 +15,7 @@ include $(top_builddir)/src/Makefile.global
 
 NAME= pgtypes
 SO_MAJOR_VERSION= 3
-SO_MINOR_VERSION= 3
+SO_MINOR_VERSION= 4
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
 	-I$(top_srcdir)/src/include/utils -I$(libpq_srcdir) $(CPPFLAGS)
diff --git a/src/interfaces/ecpg/preproc/Makefile b/src/interfaces/ecpg/preproc/Makefile
index dd1e070625d1b87b802d3fb500570ee6fc8f83d7..dec425e553d46faff9075eb68ca0a081b39fe1f0 100644
--- a/src/interfaces/ecpg/preproc/Makefile
+++ b/src/interfaces/ecpg/preproc/Makefile
@@ -16,7 +16,7 @@ top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
 MAJOR_VERSION= 4
-MINOR_VERSION= 8
+MINOR_VERSION= 9
 PATCHLEVEL=0
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
diff --git a/src/interfaces/libpq/Makefile b/src/interfaces/libpq/Makefile
index b71b0c76ef35e63575f0002d595a49ca18c4c8cd..b4be502495cca7979a965008bc87c6be1125e736 100644
--- a/src/interfaces/libpq/Makefile
+++ b/src/interfaces/libpq/Makefile
@@ -17,7 +17,7 @@ include $(top_builddir)/src/Makefile.global
 # shared library parameters
 NAME= pq
 SO_MAJOR_VERSION= 5
-SO_MINOR_VERSION= 5
+SO_MINOR_VERSION= 6
 
 override CPPFLAGS :=  -DFRONTEND -DUNSAFE_STAT_OK -I$(srcdir) $(CPPFLAGS) -I$(top_builddir)/src/port -I$(top_srcdir)/src/port
 ifneq ($(PORTNAME), win32)
diff --git a/src/tools/msvc/Mkvcbuild.pm b/src/tools/msvc/Mkvcbuild.pm
index 23023e54b7e3d0b02b2d98e3b0a4a0152bcb89d5..caecf4fd5fe5b1288da0da96973c4d7f641e6b61 100644
--- a/src/tools/msvc/Mkvcbuild.pm
+++ b/src/tools/msvc/Mkvcbuild.pm
@@ -275,8 +275,8 @@ sub mkvcbuild
 	$ecpg->AddPrefixInclude('src\interfaces\ecpg\preproc');
 	$ecpg->AddFiles('src\interfaces\ecpg\preproc','pgc.l','preproc.y');
 	$ecpg->AddDefine('MAJOR_VERSION=4');
-	$ecpg->AddDefine('MINOR_VERSION=2');
-	$ecpg->AddDefine('PATCHLEVEL=1');
+	$ecpg->AddDefine('MINOR_VERSION=9');
+	$ecpg->AddDefine('PATCHLEVEL=0');
 	$ecpg->AddDefine('ECPG_COMPILE');
 	$ecpg->AddReference($libpgport);