diff --git a/.github/workflows/build_image.yml b/.github/workflows/build_image.yml
index 5399d6c..8b2ffe2 100644
--- a/.github/workflows/build_image.yml
+++ b/.github/workflows/build_image.yml
@@ -52,7 +52,8 @@ jobs:
           if [[ $VERSION =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
             TAGS="$TAGS,${DOCKER_IMAGE}:latest"
           fi
-          TAGS="$TAGS,$DOCKER_IMAGE:${{ env.GITHUB_SHA }},$DOCKER_IMAGE:1.0.${{ env.GITHUB_RUN_ID }},$DOCKER_IMAGE:latest"
+          TG_API_VERSION=$(grep "project(TelegramBotApi" /home/runner/work/tdlib-telegram-bot-api-docker/tdlib-telegram-bot-api-docker/tdlib-telegram-bot-api/CMakeLists.txt | awk '{print $3}')
+          TAGS="$TAGS,$DOCKER_IMAGE:${{ env.GITHUB_SHA }},$DOCKER_IMAGE:1.0.${{ env.GITHUB_RUN_ID }},$DOCKER_IMAGE:latest,$DOCKER_IMAGE:api-$TG_API_VERSION"
           echo ::set-output name=tags::${TAGS}
           # lowercase the branch name
           BRANCH=$(echo ${GITHUB_REF##*/} | tr '[A-Z]' '[a-z]')
diff --git a/README.md b/README.md
index 50a5901..8fdc083 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ Build will be triggered automatically once a week to produce the latest version
 I would set it for the daily release but every build takes ~2.5 hours and generates additional costs on my side.
 
 Images are versioned in format `1.0.x` where `x` is a build number.
+There's additional tag added: `api-5.1` where `5.1` is the version of Telegram API supported by the image.
 
 ## How to use the image