diff --git a/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestDetSuite.scala b/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestDetSuite.scala
index d6d448a..9d292b8 100644
--- a/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestDetSuite.scala
+++ b/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestDetSuite.scala
@@ -18,7 +18,6 @@ package cats.effect.testing.minitest
 
 import cats.effect.IO
 import scala.concurrent.duration._
-import cats.syntax.all._
 
 @deprecated("use TestControl instead", since = "1.5.0")
 object TestDetSuite extends DeterministicIOTestSuite {
diff --git a/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestNondetSuite.scala b/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestNondetSuite.scala
index a8659eb..294ccba 100644
--- a/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestNondetSuite.scala
+++ b/minitest/shared/src/test/scala/cats/effect/testing/minitest/TestNondetSuite.scala
@@ -18,7 +18,6 @@ package cats.effect.testing.minitest
 
 import cats.effect.IO
 import scala.concurrent.duration._
-import cats.syntax.all._
 
 object TestNondetSuite extends IOTestSuite {
 
diff --git a/utest/shared/src/test/scala/cats/effect/testing/utest/TestDetSuite.scala b/utest/shared/src/test/scala/cats/effect/testing/utest/TestDetSuite.scala
index f9ebb14..f503586 100644
--- a/utest/shared/src/test/scala/cats/effect/testing/utest/TestDetSuite.scala
+++ b/utest/shared/src/test/scala/cats/effect/testing/utest/TestDetSuite.scala
@@ -16,7 +16,6 @@
 
 package cats.effect.testing.utest
 
-import cats.syntax.all._
 import cats.effect.IO
 import scala.concurrent.duration._
 import utest._
diff --git a/utest/shared/src/test/scala/cats/effect/testing/utest/TestNondetSuite.scala b/utest/shared/src/test/scala/cats/effect/testing/utest/TestNondetSuite.scala
index a01f03e..5252dc5 100644
--- a/utest/shared/src/test/scala/cats/effect/testing/utest/TestNondetSuite.scala
+++ b/utest/shared/src/test/scala/cats/effect/testing/utest/TestNondetSuite.scala
@@ -16,7 +16,6 @@
 
 package cats.effect.testing.utest
 
-import cats.syntax.all._
 import cats.effect.IO
 import utest.{Tests, assert, test}
 import scala.concurrent.duration._