diff --git a/Dockerfile b/Dockerfile
index 26befdb..fc2ad5f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,7 @@
 FROM alpine:3.9
 MAINTAINER Christoph Wiechert <wio@psitrax.de>
 
-ENV REFRESHED_AT="2020-05-24" \
-    POWERDNS_VERSION=4.3.0 \
+ENV POWERDNS_VERSION=4.3.1 \
     MYSQL_DEFAULT_AUTOCONF=true \
     MYSQL_DEFAULT_HOST="mysql" \
     MYSQL_DEFAULT_PORT="3306" \
diff --git a/README.md b/README.md
index f8bb465..8ae2f40 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@
 
 ## Supported tags
 
-* Exact: i.e. `4.3.0`: PowerDNS Version 4.3.0
+* Exact: i.e. `4.3.1`: PowerDNS Version 4.3.1
 * `4.0`: PowerDNS Version 4.0.x, latest image build
 * `4`: PowerDNS Version 4.x.x, latest image build