diff --git a/complete/build.gradle b/complete/build.gradle
index d435a4d..2e9e8d8 100644
--- a/complete/build.gradle
+++ b/complete/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '2.6.3'
+    id 'org.springframework.boot' version '2.6.6'
     id 'io.spring.dependency-management' version '1.0.11.RELEASE'
     id "io.freefair.lombok" version "6.3.0"
     id 'java'
diff --git a/complete/pom.xml b/complete/pom.xml
index 1abc588..4c51c85 100644
--- a/complete/pom.xml
+++ b/complete/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.6.3</version>
+        <version>2.6.6</version>
     </parent>
 
     <groupId>org.springframework</groupId>
diff --git a/initial/build.gradle b/initial/build.gradle
index d435a4d..2e9e8d8 100644
--- a/initial/build.gradle
+++ b/initial/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '2.6.3'
+    id 'org.springframework.boot' version '2.6.6'
     id 'io.spring.dependency-management' version '1.0.11.RELEASE'
     id "io.freefair.lombok" version "6.3.0"
     id 'java'
diff --git a/initial/pom.xml b/initial/pom.xml
index 1abc588..4c51c85 100644
--- a/initial/pom.xml
+++ b/initial/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.6.3</version>
+        <version>2.6.6</version>
     </parent>
 
     <groupId>org.springframework</groupId>