diff --git a/doc/dev.md b/doc/dev.md
index 0545a29f..4244149e 100644
--- a/doc/dev.md
+++ b/doc/dev.md
@@ -58,6 +58,10 @@ Keep notes here about how adding libraries and classes to Babashka affects the b
 <!-- 2020/01/08, ..., 38.7mb / 11.3mb zipped -->
 <!-- Added: `clojure.data.xml`. Growth: 1.8mb / ... -->
 
+2020/02/19, e43727955a2cdabd2bb0189c20dd7f9a18156fc9
+Added fipp.edn/pprint
+40598268 - 39744804 = 853kb added.
+
 2020/02/09, c8fd1c7931d7842ebaec1fa8faf06d4ab58573bd
 Added java.lang.BigInteger and java.security.MessageDigest.
 39281972 - 39072764 = 209kb added.