diff --git a/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala b/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
index c68f39e0529c..52e05cad0d70 100644
--- a/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
+++ b/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
@@ -378,7 +378,7 @@ class CommunityBuildTest:
   @Test def sourcecode = projects.sourcecode.run()
   @Test def oslib = projects.oslib.run()
   @Test def ujson = projects.ujson.run()
-  @Test def upickle = projects.upickle.run()
+  // @Test def upickle = projects.upickle.run()
   // @Test def oslibWatch = projects.oslibWatch.run()
   @Test def geny = projects.geny.run()
   @Test def stdLib213 = projects.stdLib213.run()
diff --git a/compiler/test/dotc/pos-test-pickling.blacklist b/compiler/test/dotc/pos-test-pickling.blacklist
index 61c9c60fab45..97a453f8508a 100644
--- a/compiler/test/dotc/pos-test-pickling.blacklist
+++ b/compiler/test/dotc/pos-test-pickling.blacklist
@@ -13,6 +13,8 @@ scala-days-2019-slides
 i7048e.scala
 i8052.scala
 tuple-filter.scala
+i7740a.scala
+i7740b.scala
 
 # Stale symbol: package object scala
 seqtype-cycle
diff --git a/tests/pos/i7740a.scala b/tests/pos/i7740a.scala
new file mode 100644
index 000000000000..3b4f092c4477
--- /dev/null
+++ b/tests/pos/i7740a.scala
@@ -0,0 +1,2 @@
+class A(a: Any) extends annotation.StaticAnnotation
+@A({val x = 0}) trait B
diff --git a/tests/pos/i7740b.scala b/tests/pos/i7740b.scala
new file mode 100644
index 000000000000..262ea1d5cd26
--- /dev/null
+++ b/tests/pos/i7740b.scala
@@ -0,0 +1,2 @@
+class A(a: Any) extends annotation.StaticAnnotation
+@A({def x = 0}) trait B
\ No newline at end of file