diff --git a/deps/sqlite/sqlite.gyp b/deps/sqlite/sqlite.gyp
index db57db1f4acdfd..5ee7ff049b92df 100644
--- a/deps/sqlite/sqlite.gyp
+++ b/deps/sqlite/sqlite.gyp
@@ -13,6 +13,7 @@
         'GCC_SYMBOLS_PRIVATE_EXTERN': 'YES',  # -fvisibility=hidden
       },
       'defines': [
+        'SQLITE_THREADSAFE=2',
         'SQLITE_DEFAULT_MEMSTATUS=0',
         'SQLITE_ENABLE_COLUMN_METADATA',
         'SQLITE_ENABLE_DBSTAT_VTAB',
diff --git a/deps/sqlite/unofficial.gni b/deps/sqlite/unofficial.gni
index 0e62accfb6990e..336a06a6089673 100644
--- a/deps/sqlite/unofficial.gni
+++ b/deps/sqlite/unofficial.gni
@@ -8,6 +8,7 @@ template("sqlite_gn_build") {
   config("sqlite_config") {
     include_dirs = [ "." ]
     defines = [
+      "SQLITE_THREADSAFE=2",
       "SQLITE_ENABLE_COLUMN_METADATA",
       "SQLITE_ENABLE_DBSTAT_VTAB",
       "SQLITE_ENABLE_FTS3",