diff --git a/circleci/images/exttester/Dockerfile b/circleci/images/exttester/Dockerfile
index 02bd74c..2089f33 100644
--- a/circleci/images/exttester/Dockerfile
+++ b/circleci/images/exttester/Dockerfile
@@ -171,7 +171,12 @@ apt-get install -y --no-install-recommends --allow-downgrades \
     postgresql-client-${PG_MAJOR}=${pgdg_version} \
     postgresql-${PG_MAJOR}-dbgsym=${pgdg_version} \
     postgresql-server-dev-${PG_MAJOR}=${pgdg_version} \
-    postgresql-${PG_MAJOR}-wal2json \
+
+# wal2json not available yet for PG17
+if [ "$PG_MAJOR" != "17" ];
+then
+    apt-get install -y --no-install-recommends --allow-downgrades postgresql-${PG_MAJOR}-wal2json;
+fi;
 
     # clear apt cache
 rm -rf /var/lib/apt/lists/*