diff --git a/README.md b/README.md
index 593573bc..15e3852e 100644
--- a/README.md
+++ b/README.md
@@ -25,10 +25,10 @@ Visit [eta-lang.org](https://eta-lang.org) for instructions on getting started.
 <!-- @BUILD_NUMBER@ -->
 **Version:** 0.8.6
 
-**Stable Build:** 0.8.6b3
+**Stable Build:** 0.8.6b4
 
 <!-- @BUILD_NUMBER@ -->
-**Latest Build:** 0.8.6b3
+**Latest Build:** 0.8.6b4
 
 Subscribe to the [Eta-Discuss](https://groups.google.com/forum/#!forum/eta-discuss)
 for updates.
diff --git a/libraries/eta-meta/eta-meta.cabal b/libraries/eta-meta/eta-meta.cabal
index c05301ed..d4e4a9a1 100644
--- a/libraries/eta-meta/eta-meta.cabal
+++ b/libraries/eta-meta/eta-meta.cabal
@@ -1,5 +1,5 @@
 name:           eta-meta
-version:        0.8.6.3
+version:        0.8.6.4
 license:        BSD3
 license-file:   LICENSE
 category:       Metaprogamming