diff --git a/CHANGELOG.md b/CHANGELOG.md
index f164525..0c7a4d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 2.1.0
+
+* changed env flag for hosts BITCOIN_RPC_HOST -> BITCOIN_RPC_HOSTS
+
 # 2.0.0
 
 * added feature to add multiple hosts as fallback (not getNextBlockHash yet)
diff --git a/build.sbt b/build.sbt
index 3eaf431..a62993f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 lazy val commonSettings = Seq(
   organization := "io.tokenanalyst",
-  version := "2.0.0",
+  version := "2.1.0",
   scalaVersion := "2.12.10",
   description := "bitcoin-rpc")