diff --git a/.current_gitmodules b/.current_gitmodules
index 4dcfba3f..6f078c36 100644
--- a/.current_gitmodules
+++ b/.current_gitmodules
@@ -1 +1 @@
-160000 e46eb9bc18718ce1cbd3cd2cb3714f421d47f141 0	script-languages
+160000 e962779960de423e993f0a94727133ddb3dfc49e 0	script-languages
diff --git a/doc/changes/changes_9.0.0.md b/doc/changes/changes_9.0.0.md
index 64287763..d2d3e26b 100644
--- a/doc/changes/changes_9.0.0.md
+++ b/doc/changes/changes_9.0.0.md
@@ -48,6 +48,7 @@ This release uses version 1.0.0 of the container tool.
   - #958: Fix conda version conflict
   - #1014: Fixed Push Docker Test Container workflow
   - #1017: Implemented a GH workflow which validates correct target branch of PR
+  - #772: Added check of installation of R packages
 
 ## Doc
 
diff --git a/flavors/standard-EXASOL-all/flavor_customization/Dockerfile b/flavors/standard-EXASOL-all/flavor_customization/Dockerfile
index 94ee44dc..494bed23 100644
--- a/flavors/standard-EXASOL-all/flavor_customization/Dockerfile
+++ b/flavors/standard-EXASOL-all/flavor_customization/Dockerfile
@@ -23,7 +23,7 @@ COPY flavor_customization/packages/python3_pip_packages /build_info/packages/fla
 RUN /scripts/install_scripts/install_via_pip.pl --file /build_info/packages/flavor_customization/python3_pip_packages --python-binary python3 --with-versions --allow-no-version --ignore-installed --ancestor-pip-package-root-path /build_info/packages
 
 COPY flavor_customization/packages/r_cran_packages /build_info/packages/flavor_customization
-RUN /scripts/install_scripts/install_via_r_remotes.pl --file /build_info/packages/flavor_customization/r_cran_packages --rscript-binary Rscript --with-versions --allow-no-version
+RUN /scripts/install_scripts/install_via_r_remotes.pl --file /build_info/packages/flavor_customization/r_cran_packages --rscript-binary Rscript --with-versions --allow-no-version --no-version-validation
 
 ##########################################################################
 ##########################################################################
diff --git a/flavors/standard-EXASOL-all/flavor_customization/packages/r_cran_packages b/flavors/standard-EXASOL-all/flavor_customization/packages/r_cran_packages
index 470416ad..b9c81755 100644
--- a/flavors/standard-EXASOL-all/flavor_customization/packages/r_cran_packages
+++ b/flavors/standard-EXASOL-all/flavor_customization/packages/r_cran_packages
@@ -7,4 +7,4 @@
 # If a line starts with # the whole line is a comment, however you can
 # also start a comment after the package definition.
 
-stringr|1.4.0
+#mlr3|0.21.1
diff --git a/script-languages b/script-languages
index e46eb9bc..e9627799 160000
--- a/script-languages
+++ b/script-languages
@@ -1 +1 @@
-Subproject commit e46eb9bc18718ce1cbd3cd2cb3714f421d47f141
+Subproject commit e962779960de423e993f0a94727133ddb3dfc49e