diff --git a/src/test/regress/bin/normalize.sed b/src/test/regress/bin/normalize.sed
index b0d1e6cab..2ebb31f47 100644
--- a/src/test/regress/bin/normalize.sed
+++ b/src/test/regress/bin/normalize.sed
@@ -307,6 +307,3 @@ s/(NOTICE:  issuing SET LOCAL application_name TO 'citus_rebalancer gpid=)[0-9]+
 
 # shard_rebalancer output, flaky improvement number
 s/improvement of 0.1[0-9]* is lower/improvement of 0.1xxxxx is lower/g
-
-# normalize unique key constraint errors for identity columns
-s/^(ERROR:  duplicate key value violates unique constraint "\w+)_([0-9])+"/\1_xxxxxx"/g
diff --git a/src/test/regress/expected/generated_identity.out b/src/test/regress/expected/generated_identity.out
index 0baf0d31d..a857957cd 100644
--- a/src/test/regress/expected/generated_identity.out
+++ b/src/test/regress/expected/generated_identity.out
@@ -359,7 +359,7 @@ ERROR:  cannot insert a non-DEFAULT value into column "color_id"
 DETAIL:  Column "color_id" is an identity column defined as GENERATED ALWAYS.
 HINT:  Use OVERRIDING SYSTEM VALUE to override.
 INSERT INTO color(color_id, color_name) OVERRIDING SYSTEM VALUE VALUES (1, 'Red');
-ERROR:  duplicate key value violates unique constraint "color_color_id_key_xxxxxx"
+ERROR:  duplicate key value violates unique constraint "color_color_id_key_102033"
 DETAIL:  Key (color_id)=(1) already exists.
 CONTEXT:  while executing command on localhost:xxxxx
 -- update null or custom value
@@ -388,7 +388,7 @@ ERROR:  cannot insert a non-DEFAULT value into column "color_id"
 DETAIL:  Column "color_id" is an identity column defined as GENERATED ALWAYS.
 HINT:  Use OVERRIDING SYSTEM VALUE to override.
 INSERT INTO color(color_id, color_name) OVERRIDING SYSTEM VALUE VALUES (1, 'Red');
-ERROR:  duplicate key value violates unique constraint "color_color_id_key_xxxxxx"
+ERROR:  duplicate key value violates unique constraint "color_color_id_key_102033"
 DETAIL:  Key (color_id)=(1) already exists.
 CONTEXT:  while executing command on localhost:xxxxx
 -- update null or custom value