diff --git a/chapter-2/chapter-2-simple-project/pom.xml b/chapter-2/chapter-2-simple-project/pom.xml
index 8db01c3e..9b07e293 100644
--- a/chapter-2/chapter-2-simple-project/pom.xml
+++ b/chapter-2/chapter-2-simple-project/pom.xml
@@ -12,7 +12,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-3/chapter-3-quarkus-rest-json/pom.xml b/chapter-3/chapter-3-quarkus-rest-json/pom.xml
index 7ea54bf1..f20355b0 100644
--- a/chapter-3/chapter-3-quarkus-rest-json/pom.xml
+++ b/chapter-3/chapter-3-quarkus-rest-json/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-4/chapter-4-quarkus-panache-activerecord/pom.xml b/chapter-4/chapter-4-quarkus-panache-activerecord/pom.xml
index 50308c74..7974f699 100644
--- a/chapter-4/chapter-4-quarkus-panache-activerecord/pom.xml
+++ b/chapter-4/chapter-4-quarkus-panache-activerecord/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-4/chapter-4-quarkus-panache-reactive-activerecord/pom.xml b/chapter-4/chapter-4-quarkus-panache-reactive-activerecord/pom.xml
index b7ccfb92..ccf4c1c2 100644
--- a/chapter-4/chapter-4-quarkus-panache-reactive-activerecord/pom.xml
+++ b/chapter-4/chapter-4-quarkus-panache-reactive-activerecord/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-4/chapter-4-quarkus-panache-reactive-repository/pom.xml b/chapter-4/chapter-4-quarkus-panache-reactive-repository/pom.xml
index fddb0bc8..7fcf04b3 100644
--- a/chapter-4/chapter-4-quarkus-panache-reactive-repository/pom.xml
+++ b/chapter-4/chapter-4-quarkus-panache-reactive-repository/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-4/chapter-4-quarkus-panache-repository/pom.xml b/chapter-4/chapter-4-quarkus-panache-repository/pom.xml
index 7ed1134a..54dd59a9 100644
--- a/chapter-4/chapter-4-quarkus-panache-repository/pom.xml
+++ b/chapter-4/chapter-4-quarkus-panache-repository/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-5/chapter-5-quarkus-cloud-events/pom.xml b/chapter-5/chapter-5-quarkus-cloud-events/pom.xml
index c22696a7..88d19d50 100644
--- a/chapter-5/chapter-5-quarkus-cloud-events/pom.xml
+++ b/chapter-5/chapter-5-quarkus-cloud-events/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-5/chapter-5-quarkus-kafka-streams/pom.xml b/chapter-5/chapter-5-quarkus-kafka-streams/pom.xml
index 182dbf4d..70b1ff8a 100644
--- a/chapter-5/chapter-5-quarkus-kafka-streams/pom.xml
+++ b/chapter-5/chapter-5-quarkus-kafka-streams/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-5/chapter-5-quarkus-vertx-eventbus/pom.xml b/chapter-5/chapter-5-quarkus-vertx-eventbus/pom.xml
index 78fab983..f8f9cb94 100644
--- a/chapter-5/chapter-5-quarkus-vertx-eventbus/pom.xml
+++ b/chapter-5/chapter-5-quarkus-vertx-eventbus/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-6/chapter-6-quarkus-rest-cloud-config/pom.xml b/chapter-6/chapter-6-quarkus-rest-cloud-config/pom.xml
index d3c10071..ceb9eab4 100644
--- a/chapter-6/chapter-6-quarkus-rest-cloud-config/pom.xml
+++ b/chapter-6/chapter-6-quarkus-rest-cloud-config/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-6/chapter-6-quarkus-rest-config/pom.xml b/chapter-6/chapter-6-quarkus-rest-config/pom.xml
index bd68984b..1bd9600f 100644
--- a/chapter-6/chapter-6-quarkus-rest-config/pom.xml
+++ b/chapter-6/chapter-6-quarkus-rest-config/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-6/chapter-6-quarkus-rest-database/pom.xml b/chapter-6/chapter-6-quarkus-rest-database/pom.xml
index 473a3637..e49043d9 100644
--- a/chapter-6/chapter-6-quarkus-rest-database/pom.xml
+++ b/chapter-6/chapter-6-quarkus-rest-database/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-6/chapter-6-quarkus-rest-debug/pom.xml b/chapter-6/chapter-6-quarkus-rest-debug/pom.xml
index 013da313..43fbd695 100644
--- a/chapter-6/chapter-6-quarkus-rest-debug/pom.xml
+++ b/chapter-6/chapter-6-quarkus-rest-debug/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-6/chapter-6-quarkus-rest-monitoring/pom.xml b/chapter-6/chapter-6-quarkus-rest-monitoring/pom.xml
index 8a4ecf5d..2735ff9b 100644
--- a/chapter-6/chapter-6-quarkus-rest-monitoring/pom.xml
+++ b/chapter-6/chapter-6-quarkus-rest-monitoring/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>
diff --git a/chapter-6/chapter-6-quarkus-rest/pom.xml b/chapter-6/chapter-6-quarkus-rest/pom.xml
index 28e3ab1d..971b78bc 100644
--- a/chapter-6/chapter-6-quarkus-rest/pom.xml
+++ b/chapter-6/chapter-6-quarkus-rest/pom.xml
@@ -13,7 +13,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
     <quarkus.platform.group-id>io.quarkus.platform</quarkus.platform.group-id>
-    <quarkus.platform.version>3.21.0</quarkus.platform.version>
+    <quarkus.platform.version>3.21.1</quarkus.platform.version>
     <skipITs>true</skipITs>
     <surefire-plugin.version>3.5.3</surefire-plugin.version>
   </properties>