diff --git a/build.sbt b/build.sbt
index aff789d..f0f1c4e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
-val kamon            = "io.kamon"        %% "kamon-core"              % "2.1.8"
-val kamonTestKit     = "io.kamon"        %% "kamon-testkit"           % "2.1.8"
-val kamonLogback     = "io.kamon"        %% "kamon-logback"           % "2.1.8"
+val kamon            = "io.kamon"        %% "kamon-core"              % "2.1.21"
+val kamonTestKit     = "io.kamon"        %% "kamon-testkit"           % "2.1.21"
+val kamonLogback     = "io.kamon"        %% "kamon-logback"           % "2.1.21"
 val kanela           = "io.kamon"         % "kanela-agent"            % "1.0.7"
 val googleCloudCore  = "com.google.cloud" % "google-cloud-core"       % "1.93.3"
 val googleMonitoring = "com.google.cloud" % "google-cloud-monitoring" % "1.99.2"