diff --git a/fixture/PUT/redact_ticket_comment_string.json b/fixture/PUT/redact_ticket_comment_string.json
new file mode 100644
index 00000000..0599d3c7
--- /dev/null
+++ b/fixture/PUT/redact_ticket_comment_string.json
@@ -0,0 +1,8 @@
+{
+  "comment": {
+    "author_id": 1,
+    "id": 35436,
+    "plain_body": "My social security number is ▇▇▇▇!",
+    "type": "Comment"
+  }
+}
diff --git a/zendesk/ticket_comment.go b/zendesk/ticket_comment.go
index 8790633a..84c5cf55 100644
--- a/zendesk/ticket_comment.go
+++ b/zendesk/ticket_comment.go
@@ -175,3 +175,22 @@ func (z *Client) RedactTicketComment(
 	_, err := z.put(ctx, path, body)
 	return err
 }
+
+// RedactTicketCommentStringRequest contains the body of the RedactTicketCommentString PUT request
+type RedactTicketCommentStringRequest struct {
+	Text string `json:"text"`
+}
+
+// RedactTicketCommentString permanently removes words, or strings from a ticket comment
+//
+// ref: https://developer.zendesk.com/api-reference/ticketing/tickets/ticket_comments/#redact-string-in-comment
+func (z *Client) RedactTicketCommentString(
+	ctx context.Context,
+	ticketID int64,
+	ticketCommentID int64,
+	body RedactTicketCommentStringRequest,
+) error {
+	path := fmt.Sprintf("/api/v2/tickets/%d/comments/%d/redact", ticketID, ticketCommentID)
+	_, err := z.put(ctx, path, body)
+	return err
+}
diff --git a/zendesk/ticket_comment_test.go b/zendesk/ticket_comment_test.go
index 3659408b..ef3bb40d 100644
--- a/zendesk/ticket_comment_test.go
+++ b/zendesk/ticket_comment_test.go
@@ -127,3 +127,17 @@ func TestRedactTicketComment(t *testing.T) {
 		t.Fatalf("Failed to redact ticket comment: %s", err)
 	}
 }
+
+func TestRedactTicketCommentString(t *testing.T) {
+	mockAPI := newMockAPI(http.MethodPut, "redact_ticket_comment_string.json")
+	client := newTestClient(mockAPI)
+	defer mockAPI.Close()
+
+	err := client.RedactTicketCommentString(ctx, 456, 123, RedactTicketCommentStringRequest{
+		Text: "My social security number is 847564!",
+	})
+
+	if err != nil {
+		t.Fatalf("Failed to redact ticket comment: %s", err)
+	}
+}