diff --git a/test/engine_long/suite.ini b/test/engine_long/suite.ini
index a46c9535f046d6972d6ffd459c9af38cb14ae325..66df267156acac5207c54ba01f4f8a6ba2152df2 100644
--- a/test/engine_long/suite.ini
+++ b/test/engine_long/suite.ini
@@ -6,4 +6,4 @@ long_run =  delete_replace_update.test.lua delete_insert.test.lua
 lua_libs = suite.lua
 use_unix_sockets = True
 config = engine.cfg
-is_parallel = False
+is_parallel = True
diff --git a/test/long_run-py/suite.ini b/test/long_run-py/suite.ini
index 251f88af612c7ccca4f013e58b7870d4474dc53f..9050f9b77a97bea2c698e4d548a6fcab7f18e509 100644
--- a/test/long_run-py/suite.ini
+++ b/test/long_run-py/suite.ini
@@ -7,4 +7,4 @@ valgrind_disabled =
 release_disabled =
 lua_libs = suite.lua
 use_unix_sockets = True
-is_parallel = False
+is_parallel = True
diff --git a/test/luajit-tap/suite.ini b/test/luajit-tap/suite.ini
index d5b1aa798b99ec5a40265134092b5b7e4ce07b05..80899270e4e8274e4675014d9c522b0776b58970 100644
--- a/test/luajit-tap/suite.ini
+++ b/test/luajit-tap/suite.ini
@@ -1,4 +1,4 @@
 [default]
 core = app
 description = Luajit tests
-is_parallel = False
+is_parallel = True