the changes rely on new feature in 3.1.0
diff --git a/Dockerfile b/Dockerfile
index 0e6e1aa..bd58322 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,7 @@
 ARG BASE_IMAGE_VERSION=latest
 
 ARG DATASKETCHES_CPP_HASH=8135b65408947694e13bd131038889e439847aa2
-ARG DATASKETCHES_CPP_VERSION=3.0.0
+ARG DATASKETCHES_CPP_VERSION=3.1.0
 
 FROM postgres:$BASE_IMAGE_VERSION