diff --git a/.github/workflows/doc-build.yml b/.github/workflows/doc-build.yml
index e8d53405257e93..8774cb2bf53bd2 100644
--- a/.github/workflows/doc-build.yml
+++ b/.github/workflows/doc-build.yml
@@ -18,6 +18,9 @@ env:
   # so we fetch that through pip.
   CMAKE_VERSION: 3.20.5
   DOXYGEN_VERSION: 1.9.6
+  # Job count is set to 2 less than the vCPU count of 16 because the total available RAM is 32GiB
+  # and each sphinx-build process may use more than 2GiB of RAM.
+  JOB_COUNT: 14
 
 jobs:
   doc-file-check:
@@ -130,7 +133,11 @@ jobs:
         else
           DOC_TARGET="html"
         fi
-        DOC_TAG=${DOC_TAG} SPHINXOPTS_EXTRA="-q -t publish" make -C doc ${DOC_TARGET}
+
+        DOC_TAG=${DOC_TAG} \
+        SPHINXOPTS="-j ${JOB_COUNT} -W --keep-going -T" \
+        SPHINXOPTS_EXTRA="-q -t publish" \
+        make -C doc ${DOC_TARGET}
 
         # API documentation coverage
         python3 -m coverxygen --xml-dir  doc/_build/html/doxygen/xml/ --src-dir include/ --output doc-coverage.info
@@ -243,7 +250,10 @@ jobs:
           DOC_TAG="development"
         fi
 
-        DOC_TAG=${DOC_TAG} SPHINXOPTS="-q -j auto" LATEXMKOPTS="-quiet -halt-on-error" make -C doc pdf
+        DOC_TAG=${DOC_TAG} \
+        SPHINXOPTS="-q -j ${JOB_COUNT}" \
+        LATEXMKOPTS="-quiet -halt-on-error" \
+        make -C doc pdf
 
     - name: upload-build
       if: always()