diff --git a/README.md b/README.md
index 0fb42f6..a74b53d 100644
--- a/README.md
+++ b/README.md
@@ -7,8 +7,6 @@ Arbitrary numbers of dimensions are supported, up to limits imposed by the JVM s
 Available from Clojars: [![Clojars Project](https://img.shields.io/clojars/v/sparse-array.svg)](https://clojars.org/sparse-array)
 Tests currently [![CircleCI](https://circleci.com/gh/simon-brooke/sparse-array.svg?style=svg)](https://circleci.com/gh/simon-brooke/sparse-array)
 
-[![CircleCI](https://circleci.com/gh/simon-brooke/sparse-array.svg?style=svg)](https://circleci.com/gh/simon-brooke/sparse-array)
-
 ## Conventions
 
 ### Sparse arrays
diff --git a/project.clj b/project.clj
index a94c83c..833de95 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject sparse-array "0.3.0"
+(defproject sparse-array "0.3.1-SNAPSHOT"
   :aot :all
   :cloverage {:output "docs/cloverage"}
   :codox {:metadata {:doc "**TODO**: write docs"