Bump the base dep.

Author: 23Skidoo

ekg-core.cabal

@@ -14,8 +14,8 @@ category:            System
 build-type:          Simple
 extra-source-files:  CHANGES.md
 cabal-version:       >=1.10
-tested-with:         GHC == 8.4.1, GHC == 8.2.2, GHC == 8.0.2, GHC == 7.10.3
-                   , GHC == 7.8.4, GHC == 7.6.3
+tested-with:         GHC == 8.4.1,  GHC == 8.2.2, GHC == 8.0.2,
+                     GHC == 7.10.3, GHC == 7.8.4, GHC == 7.6.3
 
 library
   exposed-modules:
@@ -33,7 +33,7 @@ library
 
   build-depends:
     ghc-prim < 0.6,
-    base >= 4.6 && < 4.11,
+    base >= 4.6 && < 4.12,
     containers >= 0.5 && < 0.6,
     text < 1.3,
     unordered-containers < 0.3