diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for sensu-run
 
+## 0.4.0.2 -- 2017-11-07
+
+* Relax upper version bound for unix-compat
+
 ## 0.4.0.1 -- 2017-10-26
 
 * Relax upper version bound for http-types
diff --git a/sensu-run.cabal b/sensu-run.cabal
--- a/sensu-run.cabal
+++ b/sensu-run.cabal
@@ -1,5 +1,5 @@
 name: sensu-run
-version: 0.4.0.1
+version: 0.4.0.2
 synopsis: A tool to send command execution results to Sensu
 description:
   @sensu-run@ is a command line tool to send command execution results to Sensu
@@ -37,7 +37,7 @@
     , temporary >= 1.1 && < 1.3
     , text >= 1.2.2 && < 1.3
     , time >= 1.5.0.1 && < 1.9
-    , unix-compat < 0.5
+    , unix-compat < 0.6
     , vector >= 0.11 && < 0.13
     , wreq >= 0.5.0 && < 0.6
   other-modules: