diff --git a/plugwerk-java-cli-example/gradle/libs.versions.toml b/plugwerk-java-cli-example/gradle/libs.versions.toml
index 2898f62..6343fa7 100644
--- a/plugwerk-java-cli-example/gradle/libs.versions.toml
+++ b/plugwerk-java-cli-example/gradle/libs.versions.toml
@@ -5,7 +5,7 @@ picocli    = "4.7.7"
 slf4j      = "2.0.18"
 logback    = "1.5.32"
 junit      = "6.0.3"
-spotless   = "8.4.0"
+spotless   = "8.5.1"
 
 [libraries]
 plugwerk-spi            = { module = "io.plugwerk:plugwerk-spi",              version.ref = "plugwerk" }
diff --git a/plugwerk-springboot-thymeleaf-example/gradle/libs.versions.toml b/plugwerk-springboot-thymeleaf-example/gradle/libs.versions.toml
index 356bad4..b018fbe 100644
--- a/plugwerk-springboot-thymeleaf-example/gradle/libs.versions.toml
+++ b/plugwerk-springboot-thymeleaf-example/gradle/libs.versions.toml
@@ -6,7 +6,7 @@ slf4j            = "2.0.18"
 # so logback-classic and logback-core stay in lockstep across Boot upgrades.
 spring-boot      = "4.0.6"
 spring-dep-mgmt  = "1.1.7"
-spotless         = "8.4.0"
+spotless         = "8.5.1"
 thymeleaf-layout = "4.0.1"
 
 [libraries]