diff --git a/REQUIRE b/REQUIRE
index ec3f5ea3..ef7059a5 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1,5 +1,5 @@
 julia 0.4
 DiffBase 0.0.3
-Compat 0.8.6
+Compat 0.17.0
 Calculus 0.2.0
 NaNMath 0.2.2
diff --git a/src/config.jl b/src/config.jl
index 57e98fc4..53fb24db 100644
--- a/src/config.jl
+++ b/src/config.jl
@@ -1,4 +1,4 @@
-abstract AbstractConfig
+@compat abstract type AbstractConfig end
 
 ###########
 # Config #