diff --git a/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/CSJ.hs b/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/CSJ.hs
index 70bb0eeb71..f468b763c5 100644
--- a/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/CSJ.hs
+++ b/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/CSJ.hs
@@ -31,10 +31,11 @@ import           Test.Tasty.QuickCheck
 import           Test.Util.Orphans.IOLike ()
 import           Test.Util.PartialAccessors
 import           Test.Util.TestBlock (TestBlock)
-import           Test.Util.TestEnv (adjustQuickCheckMaxSize)
+import           Test.Util.TestEnv (adjustQuickCheckMaxSize, adjustQuickCheckTests)
 
 tests :: TestTree
 tests =
+  adjustQuickCheckTests (* 10) $
   adjustQuickCheckMaxSize (`div` 5) $
     testGroup
       "CSJ"
diff --git a/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/DensityDisconnect.hs b/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/DensityDisconnect.hs
index 8810392aec..2453907644 100644
--- a/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/DensityDisconnect.hs
+++ b/ouroboros-consensus-diffusion/test/consensus-test/Test/Consensus/Genesis/Tests/DensityDisconnect.hs
@@ -68,7 +68,7 @@ import           Test.Util.TestEnv (adjustQuickCheckMaxSize,
 
 tests :: TestTree
 tests =
-  adjustQuickCheckTests (* 4) $
+  adjustQuickCheckTests (* 10) $
   adjustQuickCheckMaxSize (`div` 5) $
   testGroup "gdd" [
     testProperty "basic" prop_densityDisconnectStatic,