diff --git a/DEPS b/DEPS
index de06b3a..20e7e51 100644
--- a/DEPS
+++ b/DEPS
@@ -22,7 +22,7 @@
   'code_coverage_revision': '14b8501b7d9f41826d632254a1df8bc664edeec7',
   'cygwin_revision': 'c89e446b273697fadf3a10ff1007a97c0b7de6df',
   'depot_tools_revision': '5484b866dc936fd1e148385fa1575b0369eec820',
-  'freetype_revision': '578bcf103a12fb742cdb314565819011d1ac12a7',
+  'freetype_revision': '96b5e500909cfce39ff78feabefd8063a229b951',
   'gtest_revision': 'ce468a17c434e4e79724396ee1b51d86bfc8a88b',
   'icu_revision': 'e4194dc7bbb3305d84cbb1b294274ca70d230721',
   'instrumented_lib_revision': '323cf32193caecbf074d1a0cb5b02b905f163e0f',
diff --git a/third_party/BUILD.gn b/third_party/BUILD.gn
index 8472292..33b160f 100644
--- a/third_party/BUILD.gn
+++ b/third_party/BUILD.gn
@@ -163,6 +163,7 @@
       "//third_party/freetype/src/src/base/ftbase.c",
       "//third_party/freetype/src/src/base/ftbase.h",
       "//third_party/freetype/src/src/base/ftbitmap.c",
+      "//third_party/freetype/src/src/base/ftdebug.c",
       "//third_party/freetype/src/src/base/ftglyph.c",
       "//third_party/freetype/src/src/base/ftinit.c",
       "//third_party/freetype/src/src/base/ftmm.c",
diff --git a/third_party/freetype/README.pdfium b/third_party/freetype/README.pdfium
index 53c9ac7..cc40870 100644
--- a/third_party/freetype/README.pdfium
+++ b/third_party/freetype/README.pdfium
@@ -1,7 +1,7 @@
 Name: FreeType
 URL: http://www.freetype.org/
-Version: VER-2-9-1-143
-Revision: 578bcf103a12fb742cdb314565819011d1ac12a7
+Version: VER-2-9-1-166
+Revision: 96b5e500909cfce39ff78feabefd8063a229b951
 Security Critical: yes
 License: FreeType License (FTL)
 License File: FTL.TXT