diff --git a/CHANGES.rst b/CHANGES.rst
index bfadda7d..af616e96 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -18,8 +18,8 @@ Release History
    - Removed
    - Fixed
 
-0.2.2 (Unreleased)
-------------------
+0.2.2 (May 7, 2020)
+-------------------
 
 **Added**
 
diff --git a/nengo_fpga/version.py b/nengo_fpga/version.py
index 95ef0c1a..e01643a7 100644
--- a/nengo_fpga/version.py
+++ b/nengo_fpga/version.py
@@ -8,7 +8,7 @@
 
 name = "nengo-fpga"
 version_info = (0, 2, 2)  # (major, minor, patch)
-dev = 0
+dev = None
 
 version = "{v}{dev}".format(
     v=".".join(str(v) for v in version_info),