diff --git a/docker/Dockerfile b/docker/Dockerfile
index 67ece19..cf94c56 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -24,6 +24,17 @@ RUN apt-get update && \
 RUN curl -L cpanmin.us | perl - -n Mojolicious
 
 RUN cpan install Pg::Explain
+
+WORKDIR /tmp
+RUN curl https://gitlab.com/depesz/pg-sql-prettyprinter/-/archive/main/pg-sql-prettyprinter-main.tar.bz2 -o pg-sql-prettyprinter-main.tar.bz2 && \
+    tar xjvf pg-sql-prettyprinter-main.tar.bz2 && \
+    cd pg-sql-prettyprinter-main && \
+    perl Build.PL && \
+	./Build && \
+	./Build test && \
+	./Build install
+WORKDIR /explain
+
 COPY docker/explain.json explain.pl ./
 
 ENTRYPOINT /explain/explain.pl daemon