diff --git a/test/cql-pytest/test_cdc.py b/test/cql-pytest/test_cdc.py
index 2bd17fd9ac..836410f3cb 100644
--- a/test/cql-pytest/test_cdc.py
+++ b/test/cql-pytest/test_cdc.py
@@ -20,7 +20,7 @@ from cassandra.query import SimpleStatement
 
 from util import new_test_table
 
-def test_cdc_log_entries_use_cdc_streams(cql, test_keyspace):
+def test_cdc_log_entries_use_cdc_streams(scylla_only, cql, test_keyspace):
     '''Test that the stream IDs chosen for CDC log entries come from the CDC generation
     whose streams are listed in the streams description table. Since this test is executed
     on a single-node cluster, there is only one generation.'''
diff --git a/test/cql-pytest/test_validation.py b/test/cql-pytest/test_validation.py
index 83a4654d76..ef7d5ca070 100644
--- a/test/cql-pytest/test_validation.py
+++ b/test/cql-pytest/test_validation.py
@@ -158,7 +158,7 @@ good_utf8 = [
 # Note that currently, Scylla's UTF-8 parser is stricter than Cassandra's
 # (see comment above listing the relevant cases), so this test, as all tests
 # using the bad_utf8 array, will fail on Cassandra.
-def test_validation_utf8_as_blob(cql, table1):
+def test_validation_utf8_as_blob(scylla_only, cql, table1):
     cmd = "INSERT INTO {} (k, t) VALUES (1, blobAsText(0x{}))"
     for b in good_utf8:
         print(b)
@@ -181,7 +181,7 @@ def test_validation_utf8_as_blob(cql, table1):
 # Note that currently, Scylla's UTF-8 parser is stricter than Cassandra's
 # (see comment above listing the relevant cases), so this test, as all tests
 # using the bad_utf8 array, will fail on Cassandra.
-def test_validation_utf8_bound_column(cql, table1):
+def test_validation_utf8_bound_column(scylla_only, cql, table1):
     import cassandra.cqltypes
     orig_serialize = cassandra.cqltypes.UTF8Type.serialize
     def myserialize(ustr, protocol_version):