diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7291c6e2..c7398dcd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.15, 2.12.17, 3.3.1]
+        scala: [2.13.15, 2.12.17, 3.3.4]
         java:
           - adopt-hotspot@8
           - adopt-hotspot@11
diff --git a/build.sbt b/build.sbt
index 9796cf8d..73c7934f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -19,7 +19,7 @@ inThisBuild(
     organizationName   := "Antonio Alonso Dominguez",
     description        := "CRON expression parser for Scala",
     startYear          := Some(2017),
-    crossScalaVersions := Seq("2.13.15", "2.12.17", "3.3.1"),
+    crossScalaVersions := Seq("2.13.15", "2.12.17", "3.3.4"),
     homepage           := Some(url("https://github.com/alonsodomin/cron4s")),
     licenses += ("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0.txt")),
     scmInfo := Some(
diff --git a/modules/core/shared/src/main/scala-3/cron4s/expr/parts.scala b/modules/core/shared/src/main/scala-3/cron4s/expr/parts.scala
index 7c8e7bda..548d4cf5 100644
--- a/modules/core/shared/src/main/scala-3/cron4s/expr/parts.scala
+++ b/modules/core/shared/src/main/scala-3/cron4s/expr/parts.scala
@@ -16,7 +16,6 @@
 
 package cron4s.expr
 
-import cats._
 import cats.implicits._
 
 final case class DateCronExpr(