diff --git a/.azure/build-documentation.yml b/.azure/build-documentation.yml
index 5cebcbf1ac..a34ca1598a 100644
--- a/.azure/build-documentation.yml
+++ b/.azure/build-documentation.yml
@@ -20,7 +20,7 @@ trigger:
     - '*'
   branches:
     include:
-    - '*'
+    - 'master'
 
 pool:
   vmImage: ubuntu-20.04
@@ -67,14 +67,23 @@ steps:
       git clone git@github.com:thijsmie/cddstemp.github.io.git documentation-repo
     name: get_site_repo
     displayName: Pull documentation repo
-  - script: |
+  - bash: |
+      set -e -x
+      if [ "$(Build.SourceBranchName)" = "master" ]; then
+        echo "###vso[task.setvariable variable=docs_tag;]latest"
+      else
+        echo "###vso[task.setvariable variable=docs_tag;]$(echo '$(Build.SourceBranchName)' | grep -Eo '^[[:digit:]]\.[[:digit:]]\.[[:digit:]]')"
+      fi
+    name: "determine_docu_tag"
+    displayName: Determine the documentation version number
+  - bash: |
       set -e -x
-      rm -rf "documentation-repo/docs/c/$(Build.SourceBranchName)" || true
-      cp -R "build/docs/docs" "documentation-repo/docs/c/$(Build.SourceBranchName)"
+      rm -rf "documentation-repo/docs/c/${DOCS_TAG}" || true
+      cp -R "build/docs/docs" "documentation-repo/docs/c/${DOCS_TAG})"
       cd documentation-repo
       git add "docs/c/$(Build.SourceBranchName)"
       git config --local user.name "Azure Pipelines"
       git config --local user.email "azuredevops@microsoft.com"
-      (git commit -m "Publishing GitHub Pages $(Build.SourceVersion)" && git push -f origin HEAD:master) || true
+      (git commit -m "Publishing GitHub Pages ${DOCS_TAG}" && git push origin HEAD:master) || true
     name: 'commit_pages'
     displayName: Commit new documentation into repo