diff --git a/.github/workflows/open-mic-announcement-post.yml b/.github/workflows/open-mic-announcement-post.yml
index 0004bde8ad11..4fcae1d1a389 100644
--- a/.github/workflows/open-mic-announcement-post.yml
+++ b/.github/workflows/open-mic-announcement-post.yml
@@ -24,7 +24,11 @@ jobs:
       - name: Create announcement post from template
         run: |
           TITLE_ID=$(echo ${{ github.event.inputs.open_mic_session_title }} | sed 's/ /-/g' | tr [A-Z] [a-z])
-          cp ./_drafts/open-mic-announcement-template.markdown  ./_posts/$(date +"%Y-%m-%d")-${TITLE_ID}-announcement.markdown
+          OUTPUT_FILE=./_posts/$(date +"%Y-%m-%d")-${TITLE_ID}-announcement.markdown
+          OPEN_MIC_SESSION_DATE_INFORMAL=date -d "${{ github.event.inputs.open_mic_session_date }}"  +"%A %-d %B %Y"
+          cp ./_drafts/open-mic-announcement-template.markdown  ${OUTPUT_FILE}
+          sed -i "s/\${OPEN_MIC_SESSION_TITLE}/${{ github.event.inputs.open_mic_session_title }}/g" ${OUTPUT_FILE}
+          sed -i "s/\${OPEN_MIC_SESSION_DATE}/${OPEN_MIC_SESSION_DATE_INFORMAL}/g" ${OUTPUT_FILE}
       - name: Commit changes
         run: |
           git add .