diff --git a/tests/core/dune b/tests/core/dune
index 605daf0c..dfee3f21 100644
--- a/tests/core/dune
+++ b/tests/core/dune
@@ -2,6 +2,7 @@
  (name t)
  (flags :standard -strict-sequence -warn-error -a+8 -open CCShims_)
  (modes native)
+ (package containers)
  (preprocess
   (action
    (run %{project_root}/src/core/cpp/cpp.exe %{input-file})))
diff --git a/tests/data/dune b/tests/data/dune
index c8de630d..345d134d 100644
--- a/tests/data/dune
+++ b/tests/data/dune
@@ -2,4 +2,5 @@
  (name t)
  (flags :standard -strict-sequence -warn-error -a+8 -open CCShims_)
  (modes native)
+ (package containers-data)
  (libraries containers containers-data containers_testlib iter gen))
diff --git a/tests/thread/dune b/tests/thread/dune
index d8293c67..1a17562c 100644
--- a/tests/thread/dune
+++ b/tests/thread/dune
@@ -2,4 +2,5 @@
  (name t)
  (flags :standard -strict-sequence -warn-error -a+8 -open CCShims_)
  (modes native)
+ (package containers-thread)
  (libraries containers containers-thread containers_testlib iter threads))