diff --git a/tsl/test/expected/compression.out b/tsl/test/expected/compression.out
index 05620c4ddea..fc5e0ec56db 100644
--- a/tsl/test/expected/compression.out
+++ b/tsl/test/expected/compression.out
@@ -1764,6 +1764,7 @@ SELECT compress_chunk(i) FROM show_chunks('f_sensor_data') i;
 (1 row)
 
 CALL reindex_compressed_hypertable('f_sensor_data');
+VACUUM ANALYZE f_sensor_data;
 -- Encourage use of parallel plans
 SET parallel_setup_cost = 0;
 SET parallel_tuple_cost = 0;
@@ -1827,7 +1828,7 @@ SELECT * FROM f_sensor_data WHERE sensor_id > 100;
 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  Gather
    Output: _hyper_37_73_chunk."time", _hyper_37_73_chunk.sensor_id, _hyper_37_73_chunk.cpu, _hyper_37_73_chunk.temperature
-   Workers Planned: 2
+   Workers Planned: 3
    ->  Custom Scan (DecompressChunk) on _timescaledb_internal._hyper_37_73_chunk
          Output: _hyper_37_73_chunk."time", _hyper_37_73_chunk.sensor_id, _hyper_37_73_chunk.cpu, _hyper_37_73_chunk.temperature
          ->  Parallel Index Scan using compress_hyper_38_74_chunk_sensor_id__ts_meta_min_1__ts_met_idx on _timescaledb_internal.compress_hyper_38_74_chunk
diff --git a/tsl/test/expected/compression_ddl.out b/tsl/test/expected/compression_ddl.out
index 3a6d2c63c66..60f6d102288 100644
--- a/tsl/test/expected/compression_ddl.out
+++ b/tsl/test/expected/compression_ddl.out
@@ -1901,6 +1901,7 @@ SELECT compress_chunk(show_chunks('test_partials'));
  _timescaledb_internal._hyper_33_122_chunk
 (3 rows)
 
+VACUUM ANALYZE test_partials;
 -- fully compressed
 EXPLAIN (costs off) SELECT * FROM test_partials ORDER BY time;
                                                    QUERY PLAN                                                   
diff --git a/tsl/test/sql/compression.sql b/tsl/test/sql/compression.sql
index f12519f0e7b..adb7b81f07b 100644
--- a/tsl/test/sql/compression.sql
+++ b/tsl/test/sql/compression.sql
@@ -794,6 +794,8 @@ ALTER TABLE f_sensor_data SET (timescaledb.compress, timescaledb.compress_segmen
 SELECT compress_chunk(i) FROM show_chunks('f_sensor_data') i;
 CALL reindex_compressed_hypertable('f_sensor_data');
 
+VACUUM ANALYZE f_sensor_data;
+
 -- Encourage use of parallel plans
 SET parallel_setup_cost = 0;
 SET parallel_tuple_cost = 0;
diff --git a/tsl/test/sql/compression_ddl.sql b/tsl/test/sql/compression_ddl.sql
index af872977be5..8b8c098591d 100644
--- a/tsl/test/sql/compression_ddl.sql
+++ b/tsl/test/sql/compression_ddl.sql
@@ -840,6 +840,7 @@ VALUES -- chunk1
 -- enable compression, compress all chunks
 ALTER TABLE test_partials SET (timescaledb.compress);
 SELECT compress_chunk(show_chunks('test_partials'));
+VACUUM ANALYZE test_partials;
 -- fully compressed
 EXPLAIN (costs off) SELECT * FROM test_partials ORDER BY time;
 -- test P, F, F