diff --git a/octane.cabal b/octane.cabal
--- a/octane.cabal
+++ b/octane.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           octane
-version:        0.4.17
+version:        0.4.18
 synopsis:       Parse Rocket League replays.
 description:    Octane parses Rocket League replays.
 category:       Game
@@ -34,7 +34,7 @@
       aeson ==0.11.*
     , aeson-pretty ==0.7.*
     , autoexporter >=0.1 && <0.3
-    , base ==4.8.*
+    , base >=4.8 && <4.10
     , binary ==0.7.*
     , binary-bits ==0.5.*
     , bytestring ==0.10.*
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -39,7 +39,7 @@
   - aeson ==0.11.*
   - aeson-pretty ==0.7.*
   - autoexporter >=0.1 && <0.3
-  - base ==4.8.*
+  - base >=4.8 && <4.10
   - binary ==0.7.*
   - binary-bits ==0.5.*
   - bytestring ==0.10.*
@@ -70,4 +70,4 @@
     - -with-rtsopts=-N
     main: TestSuite.hs
     source-dirs: test-suite
-version: '0.4.17'
+version: '0.4.18'