diff --git a/.travis.yml b/.travis.yml
index 5a603b0..725dd0e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -87,15 +87,15 @@ install:
 before_script:
   # Output software versions
   - clickhouse-client --query "SELECT version();"
-  - psql -tc 'SHOW server_version'
+  - psql -tc 'SHOW server_version' -U postgres
 
-  - psql -tc 'SHOW server_version'
-  - psql -c 'CREATE ROLE test;'
-  - psql -c 'ALTER ROLE test WITH SUPERUSER;'
-  - psql -c 'ALTER ROLE test WITH LOGIN;'
-  - psql -c "ALTER ROLE test PASSWORD 'test';"
-  - psql -c 'CREATE DATABASE test OWNER test;'
-  - psql -c 'CREATE DATABASE test2 OWNER test;'
+  - psql -tc 'SHOW server_version' -U postgres
+  - psql -c 'CREATE ROLE test;' -U postgres
+  - psql -c 'ALTER ROLE test WITH SUPERUSER;' -U postgres
+  - psql -c 'ALTER ROLE test WITH LOGIN;' -U postgres
+  - psql -c "ALTER ROLE test PASSWORD 'test';" -U postgres
+  - psql -c 'CREATE DATABASE test OWNER test;' -U postgres
+  - psql -c 'CREATE DATABASE test2 OWNER test;' -U postgres
 
 script:
   python runtests.py