diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for influxdb
 
+## v1.6.0.5 - 2018-06-25
+
+* Relax upper version bound for doctest
+
 ## v1.6.0.4 - 2018-06-18
 
 * Relax upper version bound for containers
diff --git a/influxdb.cabal b/influxdb.cabal
--- a/influxdb.cabal
+++ b/influxdb.cabal
@@ -1,5 +1,5 @@
 name: influxdb
-version: 1.6.0.4
+version: 1.6.0.5
 synopsis: Haskell client library for InfluxDB
 description:
   @influxdb@ is a Haskell client library for InfluxDB.
@@ -116,7 +116,7 @@
   main-is:             doctests.hs
   build-depends:
       base
-    , doctest >= 0.11.3 && < 0.16
+    , doctest >= 0.11.3 && < 0.17
     , QuickCheck >= 2.10 && < 2.12
     , influxdb
     , template-haskell