diff --git a/ydb/core/protos/feature_flags.proto b/ydb/core/protos/feature_flags.proto
index 12871c77b59b..52d1cf02c442 100644
--- a/ydb/core/protos/feature_flags.proto
+++ b/ydb/core/protos/feature_flags.proto
@@ -103,7 +103,7 @@ message TFeatureFlags {
     optional bool EnableExternalDataSources = 88 [default = false];
     optional bool EnableTopicDiskSubDomainQuota = 89 [default = true];
     optional bool EnableSeparationComputeActorsFromRead = 90 [default = false];
-    optional bool EnablePQConfigTransactionsAtSchemeShard = 91 [default = true];
+    optional bool EnablePQConfigTransactionsAtSchemeShard = 91 [default = false];
     optional bool EnableScriptExecutionOperations = 92 [default = false];
     optional bool EnableImplicitQueryParameterTypes = 93 [default = true];
     optional bool EnableForceImmediateEffectsExecution = 94 [default = false];