diff --git a/src/interfaces/ecpg/compatlib/Makefile b/src/interfaces/ecpg/compatlib/Makefile
index c8e294a3a37..2aebef7e65f 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 582e8ce7929..565df3c7357 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 41f7cc0a874..86ecedfc6bd 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 dd1e070625d..dec425e553d 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 b71b0c76ef3..b4be502495c 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 23023e54b7e..caecf4fd5fe 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);