diff --git a/REQUIRE b/REQUIRE
new file mode 100644
index 0000000..137767a
--- /dev/null
+++ b/REQUIRE
@@ -0,0 +1 @@
+julia 0.6
diff --git a/test/REQUIRE b/test/REQUIRE
new file mode 100644
index 0000000..0ec8121
--- /dev/null
+++ b/test/REQUIRE
@@ -0,0 +1 @@
+TimerOutputs