diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index 9dc7471..66b491d 100755
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -184,7 +184,7 @@ jobs:
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.REPO_GITHUB_TOKEN }}
 
       - name: Set build variables 📐
         id: build_vars
diff --git a/.github/workflows/linter.yaml b/.github/workflows/linter.yaml
index 4849d89..e876ba8 100755
--- a/.github/workflows/linter.yaml
+++ b/.github/workflows/linter.yaml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
 
       - name: Lint Code Base 🧶
-        uses: github/super-linter/slim@v5
+        uses: super-linter/super-linter/slim@v5
         env:
           VALIDATE_ALL_CODEBASE: false
           DEFAULT_BRANCH: main
diff --git a/Dockerfile b/Dockerfile
index f85a14b..d826964 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,6 +34,10 @@ COPY --chmod=0755 [\
 # Install sysdeps
 RUN ./install_sysdeps.sh ${DISTRIBUTION}
 
+RUN R --version && \
+    java -version && \
+    python3 --version
+
 # Install R packages
 RUN ./install_cran_pkgs.R ${DISTRIBUTION} && \
     ./install_bioc.R ${BIOC_VERSION} && \
@@ -49,5 +53,8 @@ RUN ./install_cran_pkgs.R ${DISTRIBUTION} && \
         install_other_pkgs.R \
         install_pip_pkgs.py
 
+# Prevent pushing of the image without pdflatex installed.
+RUN pdflatex --version
+
 # Run RStudio
 CMD ["/init"]
diff --git a/scripts/install_cran_pkgs.R b/scripts/install_cran_pkgs.R
index 22546e2..d7a621a 100755
--- a/scripts/install_cran_pkgs.R
+++ b/scripts/install_cran_pkgs.R
@@ -282,7 +282,11 @@ tlmgr install makeindex metafont mfware inconsolata tex ae parskip listings xcol
 tlmgr path add
 '
   # nolint end
-  system(tinytex_installer)
+  exit_status <- system(tinytex_installer)
+  cat("TinyTeX installer exited with code =", exit_status, "\n")
+  if (exit_status != 0) {
+    quit(status = exit_status)
+  }
   tinytex::r_texmf()
   permission_update <- '
 chown -R root:staff /opt/TinyTeX
@@ -291,7 +295,11 @@ chmod -R g+wx /opt/TinyTeX/bin
 export PATH=/opt/TinyTeX/bin/x86_64-linux:${PATH}
 echo "PATH=${PATH}" >> ${R_HOME}/etc/Renviron
 '
-  system(permission_update)
+  exit_status <- system(permission_update)
+  cat("TinyTeX permission update exited with code =", exit_status, "\n")
+  if (exit_status != 0) {
+    quit(status = exit_status)
+  }
 }
 
 # Update all packages