diff --git a/project/ProjectPlugin.scala b/project/ProjectPlugin.scala
index dae41dd..9b6f7a5 100644
--- a/project/ProjectPlugin.scala
+++ b/project/ProjectPlugin.scala
@@ -17,7 +17,7 @@ object ProjectPlugin extends AutoPlugin {
         libraryDependencies ++=
           Seq(
             "org.typelevel" %%% "cats-effect"         % "3.5.3",
-            "co.fs2"         %% "fs2-core"            % "3.9.3",
+            "co.fs2"         %% "fs2-core"            % "3.9.4",
             "org.typelevel" %%% "munit-cats-effect-3" % "1.0.7" % "test"
           )
       )
@@ -26,7 +26,7 @@ object ProjectPlugin extends AutoPlugin {
       Seq(
         libraryDependencies ++=
           Seq(
-            "co.fs2" %% "fs2-core" % "3.9.3"
+            "co.fs2" %% "fs2-core" % "3.9.4"
           )
       )