diff --git a/build.gradle b/build.gradle
index 6d69f1c..81c7f89 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,12 +3,15 @@ plugins {
     alias(libs.plugins.nexus.publish)
 }
 
+ext['spring-framework.version'] = '6.2.8'
+ext['tomcat.version'] = '10.1.42'
+
 apply from: "${rootDir}/gradle/publish-root.gradle"
 
 allprojects {
     group = 'com.getyourguide.openapi.validation'
     description = 'OpenAPI Validation library'
-    version = '3.2.0'
+    version = '3.2.1'
 
     java {
         toolchain {
@@ -63,6 +66,16 @@ subprojects {
         annotationProcessor(libs.lombok)
         testCompileOnly(libs.lombok)
         testAnnotationProcessor(libs.lombok)
+
+        // Security constraints
+        constraints {
+            implementation("org.springframework:spring-web:6.2.8") {
+                because("versions below 6.2.8 have security vulnerabilities including CVE-2024-38820 - see dependabot #12")
+            }
+            implementation("org.apache.tomcat.embed:tomcat-embed-core:10.1.42") {
+                because("versions below 10.1.42 have security vulnerabilities including CVE-2024-56337 - see dependabot #13")
+            }
+        }
     }
 
     checkstyle {
@@ -79,24 +92,4 @@ subprojects {
         consoleOutput = true
         ruleSets = ["$rootDir/ruleset.xml"]
     }
-
-    // Needed for security. See:
-    // - https://github.com/getyourguide/openapi-validation-java/security/dependabot/7
-    // - https://github.com/getyourguide/openapi-validation-java/security/dependabot/6
-    // Hopefully with spring-boot 3.4.2+ this won't be needed anymore and can be removed.
-    configurations.configureEach {
-        resolutionStrategy.eachDependency {details ->
-            if (details.requested.group == 'ch.qos.logback'
-                && (details.requested.name == 'logback-core' || details.requested.name == 'logback-classic')
-            ) {
-                def parse = { String v -> v.tokenize('.').collect { it.padLeft(3, '0') }.join() }
-                def current = parse(details.requested.version)
-                def minimum = parse('1.5.15')
-                if (current < minimum) {
-                    details.useVersion '1.5.15'
-                    details.because 'Security requirement: forcing logback version'
-                }
-            }
-        }
-    }
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index a6c9a54..f90b8ce 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -36,6 +36,7 @@ mockito-junit-jupiter = { group = "org.mockito", name = "mockito-junit-jupiter",
 junit-jupiter-api = { group = "org.junit.jupiter", name = "junit-jupiter-api", version.ref = "junit-jupiter" }
 junit-jupiter-engine = { group = "org.junit.jupiter", name = "junit-jupiter-engine", version.ref = "junit-jupiter" }
 junit-platform-launcher = { group = "org.junit.platform", name = "junit-platform-launcher", version.ref = "junit-platform" }
+javax-mail = { module = "com.sun.mail:javax.mail", version = "1.6.2" }
 
 [plugins]
 spring-boot = { id = "org.springframework.boot", version.ref = "spring-boot" }
diff --git a/openapi-validation-core/build.gradle b/openapi-validation-core/build.gradle
index ffa8103..4a2962f 100644
--- a/openapi-validation-core/build.gradle
+++ b/openapi-validation-core/build.gradle
@@ -4,6 +4,8 @@ dependencies {
     api project(':openapi-validation-api')
 
     implementation(libs.swagger.request.validator.core)
+    implementation(libs.javax.mail) // needed as otherwise ClassNotFoundException: javax.mail.internet.AddressException
+
     constraints {
         implementation(libs.commons.codec) {
             because 'Apache commons-codec before 1.13 is vulnerable to information exposure. See https://devhub.checkmarx.com/cve-details/Cxeb68d52e-5509/'