diff --git a/src/pg/test/expected/01_install_test.out b/src/pg/test/expected/01_install_test.out
index 79ff047..c8a763e 100644
--- a/src/pg/test/expected/01_install_test.out
+++ b/src/pg/test/expected/01_install_test.out
@@ -1,6 +1,6 @@
 -- Install dependencies
 CREATE EXTENSION plpythonu;
-CREATE EXTENSION postgis;
+CREATE EXTENSION postgis VERSION '2.2.2';
 -- Create role publicuser if it does not exist
 DO
 $$
diff --git a/src/pg/test/sql/01_install_test.sql b/src/pg/test/sql/01_install_test.sql
index 98d7db4..c90ea59 100644
--- a/src/pg/test/sql/01_install_test.sql
+++ b/src/pg/test/sql/01_install_test.sql
@@ -1,6 +1,6 @@
 -- Install dependencies
 CREATE EXTENSION plpythonu;
-CREATE EXTENSION postgis;
+CREATE EXTENSION postgis VERSION '2.2.2';
 
 -- Create role publicuser if it does not exist
 DO