diff --git a/build.sbt b/build.sbt
index fd133e9b..112b2462 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,17 +5,17 @@ lazy val compileScalastyle = taskKey[Unit]("compileScalastyle")
 
 val commonSettings = Seq(
   scalaVersion in ThisBuild := "2.12.12",
-  crossScalaVersions := Seq("2.11.12", "2.12.12", "2.13.5", "3.0.0-RC1"),
+  crossScalaVersions := Seq("2.11.12", "2.12.12", "2.13.5", "3.0.0"),
 
   parallelExecution in ThisBuild := false,
   fork := true,
 
   scalacOptions ++= {
-    if (isDotty.value) Seq(    
+    if (isDotty.value) Seq(
       "-unchecked",
       "-deprecation",
       "-language:_",
-      "-encoding", "UTF-8",  
+      "-encoding", "UTF-8",
       "-source:3.0-migration"
     ) else Seq(
       "-unchecked",
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 722a8177..52dc6d80 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -15,12 +15,12 @@ object Dependencies {
   private val testcontainersVersion = "1.15.2"
   private val seleniumVersion = "2.53.1"
   private val slf4jVersion = "1.7.25"
-  private val scalaTestVersion = "3.2.5"
-  private val scalaTestMockitoVersion = "3.2.5.0"
+  private val scalaTestVersion = "3.2.9"
+  private val scalaTestMockitoVersion = "3.2.9.0"
   private val scalaTestSeleniumVersion_scala2 = "3.2.2.0"
-  private val scalaTestSeleniumVersion_scala3 = "3.2.5.0"
+  private val scalaTestSeleniumVersion_scala3 = "3.2.9.0"
   private val junitVersion = "4.13.1"
-  private val munitVersion = "0.7.22"
+  private val munitVersion = "0.7.25"
   private val mysqlConnectorVersion = "5.1.42"
   private val neo4jConnectorVersion = "4.0.0"
   private val oracleDriverVersion = "19.3.0.0"
diff --git a/project/Plugins.sbt b/project/Plugins.sbt
index 0bf2a110..162fe665 100644
--- a/project/Plugins.sbt
+++ b/project/Plugins.sbt
@@ -2,4 +2,4 @@ addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "2.3")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.0")
 addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.7")
 addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "1.0.0")
-addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.5.3")
+addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.5.5")
diff --git a/test-framework/scalatest/src/test/java/com/dimafeng/testcontainers/integration/JavaStub.java b/test-framework/scalatest/src/test/java/com/dimafeng/testcontainers/integration/JavaStub.java
new file mode 100644
index 00000000..fd82abde
--- /dev/null
+++ b/test-framework/scalatest/src/test/java/com/dimafeng/testcontainers/integration/JavaStub.java
@@ -0,0 +1,12 @@
+package com.dimafeng.testcontainers.integration;
+
+import org.testcontainers.images.builder.ImageFromDockerfile;
+
+// workaround for https://github.com/lampepfl/dotty/issues/12586
+public class JavaStub {
+
+  public ImageFromDockerfile imageFromDockerFileWithFileFromClasspath(String path, String resourcePath) {
+    return new ImageFromDockerfile().withFileFromClasspath(path, resourcePath);
+  }
+
+}
\ No newline at end of file
diff --git a/test-framework/scalatest/src/test/scala/com/dimafeng/testcontainers/integration/GenericContainerSpec.scala b/test-framework/scalatest/src/test/scala/com/dimafeng/testcontainers/integration/GenericContainerSpec.scala
index 53aeb577..5759863d 100644
--- a/test-framework/scalatest/src/test/scala/com/dimafeng/testcontainers/integration/GenericContainerSpec.scala
+++ b/test-framework/scalatest/src/test/scala/com/dimafeng/testcontainers/integration/GenericContainerSpec.scala
@@ -6,6 +6,7 @@ import com.dimafeng.testcontainers.{ForAllTestContainer, GenericContainer}
 import org.scalatest.flatspec.AnyFlatSpec
 import org.testcontainers.containers.wait.strategy.Wait
 import org.testcontainers.images.builder.ImageFromDockerfile
+import org.testcontainers.images.builder.traits.ClasspathTrait;
 
 import scala.io.Source
 
@@ -23,7 +24,8 @@ class GenericContainerSpec extends AnyFlatSpec with ForAllTestContainer {
 }
 
 class GenericContainerDockerFileSpec extends GenericContainerSpec {
-  private val imageFromDockerfile = new ImageFromDockerfile().withFileFromClasspath("Dockerfile", "generic-container-dockerfile")
+  // we can't do this in Scala 3 due to https://github.com/lampepfl/dotty/issues/12586 so this is delegated to a small Java class.
+  private val imageFromDockerfile = new JavaStub().imageFromDockerFileWithFileFromClasspath("Dockerfile", "generic-container-dockerfile")
   override val container: GenericContainer = GenericContainer(imageFromDockerfile,
     exposedPorts = Seq(80),
     waitStrategy = Wait.forHttp("/")