diff --git a/community-build/community-projects/cats-effect-2 b/community-build/community-projects/cats-effect-2
index 68905c4d87de..3834e379ddb7 160000
--- a/community-build/community-projects/cats-effect-2
+++ b/community-build/community-projects/cats-effect-2
@@ -1 +1 @@
-Subproject commit 68905c4d87de0ab020caf306ea384d972fa296df
+Subproject commit 3834e379ddb7f428bd45c3fc4a654d1ae75ff62a
diff --git a/community-build/community-projects/cats-effect-3 b/community-build/community-projects/cats-effect-3
index e7b50ffe9dab..353e921a07da 160000
--- a/community-build/community-projects/cats-effect-3
+++ b/community-build/community-projects/cats-effect-3
@@ -1 +1 @@
-Subproject commit e7b50ffe9dabdbe5af479f4e1c9fd447e71e07f4
+Subproject commit 353e921a07da2ff95802ac9aa0442e84010dbc77
diff --git a/community-build/src/scala/dotty/communitybuild/projects.scala b/community-build/src/scala/dotty/communitybuild/projects.scala
index a14eb96e11d2..06c578dd9d1a 100644
--- a/community-build/src/scala/dotty/communitybuild/projects.scala
+++ b/community-build/src/scala/dotty/communitybuild/projects.scala
@@ -346,7 +346,8 @@ object projects:
 
   lazy val catsEffect3 = SbtCommunityProject(
     project        = "cats-effect-3",
-    sbtTestCommand = "testIfRelevant"
+    sbtTestCommand = "test",
+    dependencies   = List(scalacheck)
   )
 
   lazy val scalaParallelCollections = SbtCommunityProject(
diff --git a/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala b/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
index bcefd88aa726..1bb58e79aab8 100644
--- a/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
+++ b/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
@@ -102,9 +102,8 @@ end CommunityBuildTestA
 class CommunityBuildTestB extends CommunityBuildTest:
   @Test def algebra = projects.algebra.run()
   @Test def betterfiles = projects.betterfiles.run()
-  // temporarily disabled due to lampepfl/dotty#10478
-  //@Test def catsEffect2 = projects.catsEffect2.run()
-  //@Test def catsEffect3 = projects.catsEffect3.run()
+  @Test def catsEffect2 = projects.catsEffect2.run()
+  @Test def catsEffect3 = projects.catsEffect3.run()
   // Temporarily disabled until problem discovered in comments to #9449 is fixed
   // @Test def dottyCpsAsync = projects.dottyCpsAsync.run()
   @Test def effpi = projects.effpi.run()