diff --git a/project/Deps.scala b/project/Deps.scala
index 97242c5..1db55ba 100644
--- a/project/Deps.scala
+++ b/project/Deps.scala
@@ -5,7 +5,7 @@ object Deps {
   def munit         = "org.scalameta"              %% "munit"         % "1.2.0"
   def osLib         = "com.lihaoyi"                %% "os-lib"        % "0.11.5"
   def caseApp       = "com.github.alexarchambault" %% "case-app"      % "2.1.0"
-  def thumbnailator = "net.coobird"                 % "thumbnailator" % "0.4.20"
+  def thumbnailator = "net.coobird"                 % "thumbnailator" % "0.4.21"
   def image4j       = "org.jclarion"                % "image4j"       % "0.7"
   def jib           = "com.google.cloud.tools"      % "jib-core"      % "0.27.3"
   def commonsIo     = "commons-io"                  % "commons-io"    % "2.20.0"