diff --git a/synapse-core/build.gradle b/synapse-core/build.gradle
index 41ad00ac..c23c0094 100644
--- a/synapse-core/build.gradle
+++ b/synapse-core/build.gradle
@@ -12,7 +12,7 @@ dependencies {
     api "org.springframework.boot:spring-boot"
     api "org.springframework.boot:spring-boot-autoconfigure"
 
-    implementation(platform("net.openhft:chronicle-bom:2.26ea47"))
+    implementation(platform("net.openhft:chronicle-bom:2.27ea2"))
     implementation "jakarta.annotation:jakarta.annotation-api:3.0.0"
 
     // This dependency is used internally, and not exposed to consumers on their own compile classpath.
diff --git a/synapse-testsupport/build.gradle b/synapse-testsupport/build.gradle
index c4207e03..ff074bbe 100644
--- a/synapse-testsupport/build.gradle
+++ b/synapse-testsupport/build.gradle
@@ -13,7 +13,7 @@ dependencies {
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310"
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jdk8"
 
-    implementation(platform("net.openhft:chronicle-bom:2.26ea47"))
+    implementation(platform("net.openhft:chronicle-bom:2.27ea2"))
     implementation("net.openhft:chronicle-map") {
         exclude group: "com.intellij", module: "annotations"
     }