diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+## 0.1.1.1 (2016-05-28)
+
+ * GHC 8.0 support.
+
 ## 0.1.1.0 (2015-07-31)
 
  * Expose internals for use in ekg-json.
diff --git a/ekg-core.cabal b/ekg-core.cabal
--- a/ekg-core.cabal
+++ b/ekg-core.cabal
@@ -1,5 +1,5 @@
 name:                ekg-core
-version:             0.1.1.0
+version:             0.1.1.1
 synopsis:            Tracking of system metrics
 description:
   This library lets you defined and track system metrics.
@@ -13,6 +13,7 @@
 build-type:          Simple
 extra-source-files:  CHANGES.md
 cabal-version:       >=1.10
+tested-with:         GHC==8.0.1, GHC == 7.10.1, GHC == 7.8.4, GHC == 7.6.3
 
 library
   exposed-modules:
@@ -29,8 +30,8 @@
     System.Metrics.ThreadId
 
   build-depends:
-    ghc-prim < 0.5,
-    base >= 4.5 && < 4.9,
+    ghc-prim < 0.6,
+    base >= 4.5 && < 4.10,
     containers >= 0.5 && < 0.6,
     text < 1.3,
     unordered-containers < 0.3