diff --git a/README.md b/README.md
index a917167f..b9e09a1a 100644
--- a/README.md
+++ b/README.md
@@ -333,6 +333,19 @@ Enables tables using pipes as in [GitHub Flavored Markdown][gfm-tables].
 
 Use class `TablesExtension` in artifact `commonmark-ext-gfm-tables`.
 
+### Alerts
+
+Adds support for GitHub-style alerts (also known as callouts or admonitions) as described [here](https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#alerts), e.g.:
+
+```
+> [!NOTE]
+> The text of the note.
+```
+
+As types you can use NOTE, TIP, IMPORTANT, WARNING, CAUTION; or configure the extension to add additional ones.
+
+Use class `AlertsExtension` in artifact `commonmark-ext-gfm-alerts`.
+
 ### Footnotes
 
 Enables footnotes like in [GitHub](https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#footnotes)
diff --git a/commonmark-integration-test/pom.xml b/commonmark-integration-test/pom.xml
index 3433b42d..8e52dd38 100644
--- a/commonmark-integration-test/pom.xml
+++ b/commonmark-integration-test/pom.xml
@@ -28,6 +28,10 @@
             <groupId>org.commonmark</groupId>
             <artifactId>commonmark-ext-ins</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.commonmark</groupId>
+            <artifactId>commonmark-ext-gfm-alerts</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.commonmark</groupId>
             <artifactId>commonmark-ext-gfm-strikethrough</artifactId>
diff --git a/commonmark-integration-test/src/test/java/org/commonmark/integration/Extensions.java b/commonmark-integration-test/src/test/java/org/commonmark/integration/Extensions.java
index 8df0408c..9090c797 100644
--- a/commonmark-integration-test/src/test/java/org/commonmark/integration/Extensions.java
+++ b/commonmark-integration-test/src/test/java/org/commonmark/integration/Extensions.java
@@ -4,6 +4,7 @@
 import org.commonmark.ext.autolink.AutolinkExtension;
 import org.commonmark.ext.footnotes.FootnotesExtension;
 import org.commonmark.ext.front.matter.YamlFrontMatterExtension;
+import org.commonmark.ext.gfm.alerts.AlertsExtension;
 import org.commonmark.ext.gfm.strikethrough.StrikethroughExtension;
 import org.commonmark.ext.gfm.tables.TablesExtension;
 import org.commonmark.ext.image.attributes.ImageAttributesExtension;
@@ -19,6 +20,7 @@ public class Extensions {
             FootnotesExtension.create(),
             ImageAttributesExtension.create(),
             InsExtension.create(),
+            AlertsExtension.create(),
             StrikethroughExtension.create(),
             TablesExtension.create(),
             TaskListItemsExtension.create(),
diff --git a/pom.xml b/pom.xml
index 58c3ead2..1c9a53f2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -155,6 +155,11 @@
                 <artifactId>commonmark-ext-ins</artifactId>
                 <version>0.27.2-SNAPSHOT</version>
             </dependency>
+            <dependency>
+                <groupId>org.commonmark</groupId>
+                <artifactId>commonmark-ext-gfm-alerts</artifactId>
+                <version>0.27.2-SNAPSHOT</version>
+            </dependency>
             <dependency>
                 <groupId>org.commonmark</groupId>
                 <artifactId>commonmark-ext-gfm-strikethrough</artifactId>