diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9ca49c6d..0ca01b09 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -36,6 +36,6 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
           repository: nlextract/nlextract
-          tags: latest,1.5.5
+          tags: latest,1.5.6dev
           # tag_with_ref: true
           # tag_with_sha: true
diff --git a/Dockerfile b/Dockerfile
index 42f01015..ed03a97d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/osgeo/gdal:ubuntu-small-3.8.5
+FROM ghcr.io/osgeo/gdal:ubuntu-small-3.9.1
 
 LABEL maintainer="Just van den Broecke <justb4@gmail.com>"
 
@@ -19,7 +19,7 @@ ENV TZ=${TIMEZONE} \
 RUN \
 	apt-get update && apt-get --no-install-recommends install -y gnupg ca-certificates \
     && curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor | tee /etc/apt/trusted.gpg.d/apt.postgresql.org.gpg >/dev/null \
-	&& sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ jammy-pgdg main" >> /etc/apt/sources.list.d/postgresql.list' \
+	&& sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ noble-pgdg main" >> /etc/apt/sources.list.d/postgresql.list' \
 	&& apt-get -y update \
 	&& apt-get --no-install-recommends install -y ${DEB_PACKAGES} \
 	&& cp /usr/share/zoneinfo/${TZ} /etc/localtime \
diff --git a/VERSIES b/VERSIES
index daf21e99..1211cd19 100644
--- a/VERSIES
+++ b/VERSIES
@@ -4,13 +4,17 @@ via de link: https://github.com/nlextract/NLExtract/releases.
 De nieuwste versie staat bovenaan: kies de "real-release" nlextract zip.
 De rest ligt nog open afhankelijk van wensen gebruikers en natuurlijk eventuele bugs.
 
-v1.6.0 - geplend
+v1.5.6 - 8 aug 2024
 
-Leftovers van vorige versies. Versie nummer nog te bepalen.
+Leftovers van vorige versies.
 
-Zie de Milestone voor deeze versie:
+Zie de Milestone voor deze versie:
 https://github.com/nlextract/NLExtract/milestone/19
 
+vnl upgrades:
+- Stetl submodule,
+- Dockerfile: Ubuntu 24.04, Python 3.12, GDAL 3.9.1
+
 v1.5.5 - 25 apr 2024
 
 * Fixes op 1.5.4
diff --git a/bagv2/etl/sql/create-meta.sql b/bagv2/etl/sql/create-meta.sql
index fc9256e6..b018c9ae 100644
--- a/bagv2/etl/sql/create-meta.sql
+++ b/bagv2/etl/sql/create-meta.sql
@@ -14,7 +14,7 @@ CREATE TABLE nlx_bag_info (
 INSERT INTO nlx_bag_info (sleutel,waarde)
         VALUES ('schema_versie', '2.1.0');
 INSERT INTO nlx_bag_info (sleutel,waarde)
-        VALUES ('software_versie', '1.5.5');
+        VALUES ('software_versie', '1.5.6dev');
 INSERT INTO nlx_bag_info (sleutel,waarde)
         VALUES ('schema_creatie', to_char(current_timestamp, 'DD-Mon-IYYY HH24:MI:SS'));
 INSERT INTO nlx_bag_info (sleutel,waarde)
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 55b06103..9ed3e0b1 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -48,9 +48,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '1.5.5'
+version = '1.5.6dev'
 # The full version, including alpha/beta/rc tags.
-release = '1.5.5'
+release = '1.5.6dev'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.