diff --git a/build.sh b/build.sh
index 0218293..bac1c02 100755
--- a/build.sh
+++ b/build.sh
@@ -1,8 +1,8 @@
 #!/bin/bash
 
 export REPO=ghcr.io/bihealth/irods-docker
-export IRODS_PKG_VERSION=${IRODS_PKG_VERSION-4.3.1}
-export IRODS_PYTHON_RULE_ENGINE_VERSION=${IRODS_PYTHON_RULE_ENGINE_VERSION-4.3.1.0}
+export IRODS_PKG_VERSION=${IRODS_PKG_VERSION-4.3.3}
+export IRODS_PYTHON_RULE_ENGINE_VERSION=${IRODS_PYTHON_RULE_ENGINE_VERSION-4.3.3.0-0+4.3.3}
 export BUILD_VERSION=${BUILD_VERSION-1}
 
 docker build \