diff --git a/Changelog.md b/Changelog.md
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,7 @@
+## 1.0.10
+
+* Increased the upper-bound of `base` to < 4.13.
+
 ## 1.0.9
 
 * Increased the upper-bound of `http-types` to < 0.13
diff --git a/engine-io-wai.cabal b/engine-io-wai.cabal
--- a/engine-io-wai.cabal
+++ b/engine-io-wai.cabal
@@ -1,5 +1,5 @@
 name: engine-io-wai
-version: 1.0.9
+version: 1.0.10
 synopsis: An @engine-io@ @ServerAPI@ that is compatible with @Wai@
 homepage: http://github.com/ocharles/engine.io
 license: BSD3
@@ -21,7 +21,7 @@
         Network.EngineIO.Wai
 
     build-depends:
-        base >=4.6 && <4.12,
+        base >=4.6 && <4.13,
         engine-io >= 1.2 && < 1.3,
         http-types >= 0.8 && < 0.13,
         unordered-containers >= 0.2 && < 0.3,