diff --git a/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExplicitCopyTest.scala b/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExplicitCopyTest.scala
index 5651991..bc8f338 100644
--- a/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExplicitCopyTest.scala
+++ b/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExplicitCopyTest.scala
@@ -34,7 +34,8 @@ class ExplicitCopyTest extends AnyFlatSpec with Matchers {
       def paths(paths: Paths): Docs = copy(paths = paths)
     }
     val docs = Docs()
-    docs.modify(_.paths.pathItems).using(m => m + ("a" -> PathItem()))
+    val r = docs.modify(_.paths.pathItems).using(m => m + ("a" -> PathItem()))
+    r.paths.pathItems should contain ("a" -> PathItem())
   }
 
   it should "modify a case class with an additional explicit copy" in {
@@ -43,7 +44,8 @@ class ExplicitCopyTest extends AnyFlatSpec with Matchers {
     }
 
     val f = Frozen("A", 0)
-    f.modify(_.state).setTo("B")
+    val r = f.modify(_.state).setTo("B")
+    r.state shouldEqual "B"
   }
 
   it should "modify a case class with an ambiguous additional explicit copy" in {
@@ -52,7 +54,8 @@ class ExplicitCopyTest extends AnyFlatSpec with Matchers {
     }
 
     val f = Frozen("A", 0)
-    f.modify(_.state).setTo("B")
+    val r = f.modify(_.state).setTo("B")
+    r.state shouldEqual "B"
   }
 
   it should "modify a class with two explicit copy methods" in {
@@ -62,7 +65,8 @@ class ExplicitCopyTest extends AnyFlatSpec with Matchers {
     }
 
     val f = new Frozen("A", 0)
-    f.modify(_.state).setTo("B")
+    val r = f.modify(_.state).setTo("B")
+    r.state shouldEqual "B"
   }
 
   it should "modify a case class with an ambiguous additional explicit copy and pick the synthetic one first" in {
diff --git a/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExtensionCopyTest.scala b/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExtensionCopyTest.scala
index f24effa..0fbb832 100644
--- a/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExtensionCopyTest.scala
+++ b/quicklens/src/test/scala-3/com/softwaremill/quicklens/test/ExtensionCopyTest.scala
@@ -56,7 +56,7 @@ class ExtensionCopyTest extends AnyFlatSpec with Matchers {
 
     val a = VecCompanion(1, 2)
     val b = a.modify(_.x).using(_ + 10)
-    assert(b.x == 11)
+    b.x shouldEqual 11
   }
 
   it should "modify a class with extension methods in companion" in {
@@ -76,7 +76,7 @@ class ExtensionCopyTest extends AnyFlatSpec with Matchers {
 
     val a = VecClass(1, 2)
     val b = a.modify(_.x).using(_ + 10)
-    assert(b.x == 11)
+    b.x shouldEqual 11
   }
 
   it should "modify an opaque type with extension methods" in {
@@ -84,6 +84,6 @@ class ExtensionCopyTest extends AnyFlatSpec with Matchers {
 
     val a = Vec(1, 2)
     val b = a.modify(_.x).using(_ + 10)
-    assert(b.x == 11)
+    b.x shouldEqual 11
   }
 }