diff --git a/iam-persistence/src/main/resources/db/migration/h2/V101__add_refresh_token_value_index.sql b/iam-persistence/src/main/resources/db/migration/h2/V101__add_refresh_token_value_index.sql
new file mode 100644
index 000000000..c16a71024
--- /dev/null
+++ b/iam-persistence/src/main/resources/db/migration/h2/V101__add_refresh_token_value_index.sql
@@ -0,0 +1 @@
+ALTER TABLE refresh_token ADD CONSTRAINT rt_tvh_idx UNIQUE (token_value);
\ No newline at end of file
diff --git a/iam-persistence/src/main/resources/db/migration/mysql/V101__add_refresh_token_value_index.sql b/iam-persistence/src/main/resources/db/migration/mysql/V101__add_refresh_token_value_index.sql
new file mode 100644
index 000000000..d0cb47538
--- /dev/null
+++ b/iam-persistence/src/main/resources/db/migration/mysql/V101__add_refresh_token_value_index.sql
@@ -0,0 +1 @@
+ALTER TABLE refresh_token ADD CONSTRAINT rt_tvh_idx UNIQUE (token_value(767));
\ No newline at end of file