diff --git a/Projects/AthDataQuality/CMakeLists.txt b/Projects/AthDataQuality/CMakeLists.txt
index fd720da5f73d97f7a0688cdfdc7fa1d47024d50f..46a0abb1c81491f948f61c4e1479b24f470b7ba9 100644
--- a/Projects/AthDataQuality/CMakeLists.txt
+++ b/Projects/AthDataQuality/CMakeLists.txt
@@ -8,7 +8,7 @@ project( AthDataQuality VERSION ${_version} LANGUAGES CXX )
 unset( _version )
 
 # Set the version of tdaq-common to use for the build:
-set( TDAQ-COMMON_VERSION "03-04-01" CACHE STRING
+set( TDAQ-COMMON_VERSION "04-00-00" CACHE STRING
    "The version of tdaq-common to use for the build" )
 set( TDAQ-COMMON_ATROOT
    "$ENV{TDAQ_RELEASE_BASE}/tdaq-common/tdaq-common-${TDAQ-COMMON_VERSION}"
@@ -20,7 +20,7 @@ find_package( AtlasCMake REQUIRED )
 # Build the project against LCG:
 set( LCG_VERSION_POSTFIX ""
    CACHE STRING "Version postfix for the LCG release to use" )
-set( LCG_VERSION_NUMBER 96
+set( LCG_VERSION_NUMBER 97
    CACHE STRING "Version number for the LCG release to use" )
 find_package( LCG ${LCG_VERSION_NUMBER} EXACT REQUIRED )
 
diff --git a/Projects/AthGeneration/build_externals.sh b/Projects/AthGeneration/build_externals.sh
index 99cf4d58cf4f15fd2faa785bb4275514c850e745..012de3d5cac38e8b4f962a645e224413ffe4d122 100755
--- a/Projects/AthGeneration/build_externals.sh
+++ b/Projects/AthGeneration/build_externals.sh
@@ -24,7 +24,7 @@ BUILDDIR=""
 BUILDTYPE="RelWithDebInfo"
 FORCE=""
 CI=""
-EXTRACMAKE=(-DLCG_VERSION_NUMBER=96 -DLCG_VERSION_POSTFIX="")
+EXTRACMAKE=(-DLCG_VERSION_NUMBER=97 -DLCG_VERSION_POSTFIX="")
 while getopts ":t:b:x:fch" opt; do
     case $opt in
         t)
diff --git a/Projects/AthSimulation/build_externals.sh b/Projects/AthSimulation/build_externals.sh
index 0c4833b077ae3ae19fef7dfbbb7899367f5cbbe4..5e3c9d5dd1c418cdf63271b11f6eb30876fcdf89 100755
--- a/Projects/AthSimulation/build_externals.sh
+++ b/Projects/AthSimulation/build_externals.sh
@@ -24,7 +24,7 @@ BUILDDIR=""
 BUILDTYPE="RelWithDebInfo"
 FORCE=""
 CI=""
-EXTRACMAKE=(-DLCG_VERSION_NUMBER=96 -DLCG_VERSION_POSTFIX="")
+EXTRACMAKE=(-DLCG_VERSION_NUMBER=97 -DLCG_VERSION_POSTFIX="")
 while getopts ":t:b:x:fch" opt; do
     case $opt in
         t)
diff --git a/Projects/Athena/CMakeLists.txt b/Projects/Athena/CMakeLists.txt
index 08545f1d94da9704ebe5f498198c540b45ac4ba2..df0ce8aef860df07b7a18fbfea83dd220d79a570 100644
--- a/Projects/Athena/CMakeLists.txt
+++ b/Projects/Athena/CMakeLists.txt
@@ -24,9 +24,9 @@ if( LCG_NIGHTLY )
     set( TDAQ_VERSION "99-00-00" CACHE STRING
        "The version of tdaq to use for the build" )
 else()
-    set( TDAQ-COMMON_VERSION "03-04-01" CACHE STRING
+    set( TDAQ-COMMON_VERSION "04-00-00" CACHE STRING
        "The version of tdaq-common to use for the build" )
-    set( TDAQ_VERSION "08-03-01" CACHE STRING
+    set( TDAQ_VERSION "09-00-00" CACHE STRING
        "The version of tdaq to use for the build" )
 endif()
 
diff --git a/Projects/Athena/build_externals.sh b/Projects/Athena/build_externals.sh
index f13334ceddd78de5c535f1d037aea52742e976af..9d3c98d670108457b02dd1a2c0ebe73a18845e72 100755
--- a/Projects/Athena/build_externals.sh
+++ b/Projects/Athena/build_externals.sh
@@ -24,7 +24,7 @@ BUILDDIR=""
 BUILDTYPE="RelWithDebInfo"
 FORCE=""
 CI=""
-EXTRACMAKE=(-DLCG_VERSION_NUMBER=96 -DLCG_VERSION_POSTFIX="")
+EXTRACMAKE=(-DLCG_VERSION_NUMBER=97 -DLCG_VERSION_POSTFIX="")
 while getopts ":t:b:x:fch" opt; do
     case $opt in
         t)