diff --git a/build.gradle b/build.gradle
index 1632fdd6..f00d732a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 plugins {
   id 'application'
   id 'java'
-  id 'org.springframework.boot' version '4.0.1'
+  id 'org.springframework.boot' version '4.0.2'
   id 'io.spring.dependency-management' version '1.1.7'
   id 'jacoco'
   id 'maven-publish'
@@ -35,6 +35,6 @@ dependencies {
   // This is proving to be a real puzzle. This is actually included in the api published pom
   // ( though with scope of "runtime" )
   // Yet we still need to add it manually. Grrr. TBC.
-  implementation "io.swagger.core.v3:swagger-annotations:2.2.41"
-  implementation("org.owasp.encoder:encoder:1.2.3")
+  implementation "io.swagger.core.v3:swagger-annotations:2.2.42"
+  implementation("org.owasp.encoder:encoder:1.4.0")
 }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 8bdaf60c..61285a65 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 2a84e188..37f78a6a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index ef07e016..adff685a 100755
--- a/gradlew
+++ b/gradlew
@@ -114,7 +114,6 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH="\\\"\\\""
 
 
 # Determine the Java command to use to start the JVM.
@@ -172,7 +171,6 @@ fi
 # For Cygwin or MSYS, switch paths to Windows format before running java
 if "$cygwin" || "$msys" ; then
     APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
 
     JAVACMD=$( cygpath --unix "$JAVACMD" )
 
@@ -212,7 +210,6 @@ DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
         -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
         "$@"