diff --git a/README.md b/README.md
index b2aeba7..11d14ed 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Updater library
 
+[![codecov](https://codecov.io/gh/shorebirdtech/updater/branch/main/graph/badge.svg)](https://codecov.io/gh/shorebirdtech/updater)
+
 This is the Rust side of the Shorebird code push system.  This is built
 in Rust with a C API for easy calling from other languages, most notably
 for linking into `libflutter.so`.