diff --git a/db/change_pressure_datatype.sql b/db/change_pressure_datatype.sql
new file mode 100644
index 0000000..737b3a9
--- /dev/null
+++ b/db/change_pressure_datatype.sql
@@ -0,0 +1,3 @@
+ALTER TABLE sensor_data ALTER COLUMN pressure TYPE DECIMAL(7, 3);
+
+SELECT * FROM sensor_data;
\ No newline at end of file