diff --git a/DEPS b/DEPS
index 6ad123e..69b0814 100644
--- a/DEPS
+++ b/DEPS
@@ -3,7 +3,7 @@
     "https://chromium.googlesource.com/external/gyp",
 
   "testing/corpus":
-     "https://pdfium.googlesource.com/pdfium_tests",
+     "https://pdfium.googlesource.com/pdfium_tests@e733fe1d98fad50c9b5f4023f08db429143b1291",
 
   "testing/gmock":
      "https://chromium.googlesource.com/external/googlemock.git@29763965ab52f24565299976b936d1265cb6a271",