diff --git a/packages/backend-rs/index.d.ts b/packages/backend-rs/index.d.ts
index abf1480222..4253dbf730 100644
--- a/packages/backend-rs/index.d.ts
+++ b/packages/backend-rs/index.d.ts
@@ -232,6 +232,7 @@ export function extractHost(uri: string): string
 export function toPuny(host: string): string
 export function isUnicodeEmoji(s: string): boolean
 export function sqlLikeEscape(src: string): string
+export function sqlRegexEscape(src: string): string
 export function safeForSql(src: string): boolean
 /** Convert milliseconds to a human readable string */
 export function formatMilliseconds(milliseconds: number): string
diff --git a/packages/backend-rs/index.js b/packages/backend-rs/index.js
index 3fd0fc95eb..c86f0f27d6 100644
--- a/packages/backend-rs/index.js
+++ b/packages/backend-rs/index.js
@@ -310,7 +310,7 @@ if (!nativeBinding) {
   throw new Error(`Failed to load native binding`)
 }
 
-const { SECOND, MINUTE, HOUR, DAY, USER_ONLINE_THRESHOLD, USER_ACTIVE_THRESHOLD, FILE_TYPE_BROWSERSAFE, loadEnv, loadConfig, stringToAcct, acctToString, greet, initializeRustLogger, showServerInfo, isBlockedServer, isSilencedServer, isAllowedServer, checkWordMute, getFullApAccount, isSelfHost, isSameOrigin, extractHost, toPuny, isUnicodeEmoji, sqlLikeEscape, safeForSql, formatMilliseconds, getImageSizeFromUrl, getNoteSummary, isQuote, isSafeUrl, latestVersion, toMastodonId, fromMastodonId, fetchMeta, metaToPugArgs, nyaify, hashPassword, verifyPassword, isOldPasswordAlgorithm, decodeReaction, countReactions, toDbReaction, removeOldAttestationChallenges, cpuInfo, cpuUsage, memoryUsage, storageUsage, AntennaSrc, DriveFileUsageHint, MutedNoteReason, NoteVisibility, NotificationType, PageVisibility, PollNoteVisibility, RelayStatus, UserEmojiModPerm, UserProfileFfvisibility, UserProfileMutingNotificationTypes, updateAntennasOnNewNote, fetchNodeinfo, nodeinfo_2_1, nodeinfo_2_0, Protocol, Inbound, Outbound, watchNote, unwatchNote, PushNotificationKind, sendPushNotification, publishToChannelStream, ChatEvent, publishToChatStream, ChatIndexEvent, publishToChatIndexStream, publishToBroadcastStream, publishToGroupChatStream, publishToModerationStream, getTimestamp, genId, genIdAt, generateSecureRandomString, generateUserToken } = nativeBinding
+const { SECOND, MINUTE, HOUR, DAY, USER_ONLINE_THRESHOLD, USER_ACTIVE_THRESHOLD, FILE_TYPE_BROWSERSAFE, loadEnv, loadConfig, stringToAcct, acctToString, greet, initializeRustLogger, showServerInfo, isBlockedServer, isSilencedServer, isAllowedServer, checkWordMute, getFullApAccount, isSelfHost, isSameOrigin, extractHost, toPuny, isUnicodeEmoji, sqlLikeEscape, sqlRegexEscape, safeForSql, formatMilliseconds, getImageSizeFromUrl, getNoteSummary, isQuote, isSafeUrl, latestVersion, toMastodonId, fromMastodonId, fetchMeta, metaToPugArgs, nyaify, hashPassword, verifyPassword, isOldPasswordAlgorithm, decodeReaction, countReactions, toDbReaction, removeOldAttestationChallenges, cpuInfo, cpuUsage, memoryUsage, storageUsage, AntennaSrc, DriveFileUsageHint, MutedNoteReason, NoteVisibility, NotificationType, PageVisibility, PollNoteVisibility, RelayStatus, UserEmojiModPerm, UserProfileFfvisibility, UserProfileMutingNotificationTypes, updateAntennasOnNewNote, fetchNodeinfo, nodeinfo_2_1, nodeinfo_2_0, Protocol, Inbound, Outbound, watchNote, unwatchNote, PushNotificationKind, sendPushNotification, publishToChannelStream, ChatEvent, publishToChatStream, ChatIndexEvent, publishToChatIndexStream, publishToBroadcastStream, publishToGroupChatStream, publishToModerationStream, getTimestamp, genId, genIdAt, generateSecureRandomString, generateUserToken } = nativeBinding
 
 module.exports.SECOND = SECOND
 module.exports.MINUTE = MINUTE
@@ -337,6 +337,7 @@ module.exports.extractHost = extractHost
 module.exports.toPuny = toPuny
 module.exports.isUnicodeEmoji = isUnicodeEmoji
 module.exports.sqlLikeEscape = sqlLikeEscape
+module.exports.sqlRegexEscape = sqlRegexEscape
 module.exports.safeForSql = safeForSql
 module.exports.formatMilliseconds = formatMilliseconds
 module.exports.getImageSizeFromUrl = getImageSizeFromUrl
diff --git a/packages/backend-rs/src/misc/escape_sql.rs b/packages/backend-rs/src/misc/escape_sql.rs
index c575e088ce..7d7787b1e5 100644
--- a/packages/backend-rs/src/misc/escape_sql.rs
+++ b/packages/backend-rs/src/misc/escape_sql.rs
@@ -1,8 +1,17 @@
+use once_cell::sync::Lazy;
+use regex::Regex;
+
 #[crate::export]
 pub fn sql_like_escape(src: &str) -> String {
     src.replace('%', r"\%").replace('_', r"\_")
 }
 
+#[crate::export]
+pub fn sql_regex_escape(src: &str) -> String {
+    static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"[!$()*+.:<=>?\[\]\^{|}-]").unwrap());
+    RE.replace_all(src, r"\$1").to_string()
+}
+
 #[crate::export]
 pub fn safe_for_sql(src: &str) -> bool {
     !src.contains([
diff --git a/packages/backend/src/misc/sql-regex-escape.ts b/packages/backend/src/misc/sql-regex-escape.ts
deleted file mode 100644
index abeec5ee4a..0000000000
--- a/packages/backend/src/misc/sql-regex-escape.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export function sqlRegexEscape(s: string) {
-	return s.replace(/([!$()*+.:<=>?[\\\]^{|}-])/g, "\\$1");
-}
diff --git a/packages/backend/src/server/api/common/generate-fts-query.ts b/packages/backend/src/server/api/common/generate-fts-query.ts
index d7c71256a4..bda7ad085f 100644
--- a/packages/backend/src/server/api/common/generate-fts-query.ts
+++ b/packages/backend/src/server/api/common/generate-fts-query.ts
@@ -3,8 +3,7 @@ import {
 	type SelectQueryBuilder,
 	type WhereExpressionBuilder,
 } from "typeorm";
-import { sqlLikeEscape } from "backend-rs";
-import { sqlRegexEscape } from "@/misc/sql-regex-escape.js";
+import { sqlLikeEscape, sqlRegexEscape } from "backend-rs";
 import {
 	Followings,
 	NoteFavorites,