diff --git a/WORKSPACE b/WORKSPACE
index 5207f9c..7a29db6 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -1,13 +1,6 @@
 workspace(name = "tink_go_gcpkms")
 
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_file")
-
-http_file(
-    name = "google_root_pem",
-    executable = 0,
-    sha256 = "1acf0d4780541758be2c0f998e1e0275232626ed3f8793d8e2fe8e2753750613",
-    urls = ["https://pki.goog/roots.pem"],
-)
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 # -------------------------------------------------------------------------
 # Bazel Skylib.
@@ -45,17 +38,6 @@ http_archive(
     sha256 = "5babb8571f1cceafe0c18e13ddb3be556e87e12ceea3463d6b0d0064e6cc1ac3",
 )
 
-# -------------------------------------------------------------------------
-# Wycheproof.
-# -------------------------------------------------------------------------
-# Commit from 2019-12-17
-http_archive(
-    name = "wycheproof",
-    sha256 = "eb1d558071acf1aa6d677d7f1cabec2328d1cf8381496c17185bd92b52ce7545",
-    strip_prefix = "wycheproof-d8ed1ba95ac4c551db67f410c06131c3bc00a97c",
-    url = "https://github.com/google/wycheproof/archive/d8ed1ba95ac4c551db67f410c06131c3bc00a97c.zip",
-)
-
 # -------------------------------------------------------------------------
 # Bazel rules for Go.
 # -------------------------------------------------------------------------
diff --git a/integration/gcpkms/BUILD.bazel b/integration/gcpkms/BUILD.bazel
index b470738..6b8bca1 100644
--- a/integration/gcpkms/BUILD.bazel
+++ b/integration/gcpkms/BUILD.bazel
@@ -31,8 +31,6 @@ go_test(
         # targets.
         "//testdata/gcp:credentials",
         "//testdata/keysets:ecies",
-        "@google_root_pem//file",  #keep
-        "@wycheproof//testvectors:all",  #keep
     ],
     tags = ["manual"],
     deps = [