diff --git a/creatur.cabal b/creatur.cabal
index 35a1122..dac94a4 100644
--- a/creatur.cabal
+++ b/creatur.cabal
@@ -70,7 +70,7 @@ library
   Other-modules:    Paths_creatur
   Build-Depends:
                     array ==0.5.*,
-                    base ==4.*,
+                    base ==4.* && >= 4.8,
                     bytestring ==0.10.*,
                     cond ==0.4.*,
                     cereal ==0.4.*,
@@ -98,7 +98,7 @@ Test-suite creatur-tests
   Hs-source-dirs:   test
   Build-Depends:
                     array ==0.5.*,
-                    base ==4.*,
+                    base ==4.* && >= 4.8,
                     binary ==0.7.*,
                     cereal ==0.4.*,
                     creatur,
@@ -135,7 +135,7 @@ Test-suite creatur-tests
 --   GHC-Options:      -Wall
 --   Hs-source-dirs:   test
 --   Build-Depends:
---                     base ==4.*,
+--                     base ==4.* && >= 4.8,
 --                     creatur,
 --                     criterion ==0.8.*,
 --                     test-framework ==0.8.*