Bump deps.

23Skidoo · 23Skidoo · commit b1d8b6d228e4 · 2018-08-01T13:40:57.000+01:00
diff --git a/ekg-core.cabal b/ekg-core.cabal
@@ -34,7 +34,7 @@ library
   build-depends:
     ghc-prim < 0.6,
     base >= 4.6 && < 4.12,
-    containers >= 0.5 && < 0.6,
+    containers >= 0.5 && < 0.7,
     text < 1.3,
     unordered-containers < 0.3
 
