diff --git a/build.sbt b/build.sbt
index 758fbf1..2e4a220 100644
--- a/build.sbt
+++ b/build.sbt
@@ -21,7 +21,7 @@ lazy val toolkit = crossProject(JVMPlatform, JSPlatform, NativePlatform)
     name := "toolkit",
     libraryDependencies ++= Seq(
       "org.typelevel" %%% "cats-core" % "2.10.0",
-      "org.typelevel" %%% "cats-effect" % "3.5.3",
+      "org.typelevel" %%% "cats-effect" % "3.5.4",
       "co.fs2" %%% "fs2-io" % "3.9.4",
       "org.gnieh" %%% "fs2-data-csv" % "1.10.0",
       "org.gnieh" %%% "fs2-data-csv-generic" % "1.10.0",
@@ -39,7 +39,7 @@ lazy val toolkitTest = crossProject(JVMPlatform, JSPlatform, NativePlatform)
     name := "toolkit-test",
     libraryDependencies ++= Seq(
       "org.typelevel" %%% "cats-core" % "2.10.0",
-      "org.typelevel" %%% "cats-effect-testkit" % "3.5.3",
+      "org.typelevel" %%% "cats-effect-testkit" % "3.5.4",
       "org.scalameta" %%% "munit" % "1.0.0-M11", // not % Test, on purpose :)
       "org.typelevel" %%% "munit-cats-effect" % "2.0.0-M4"
     ),