diff --git a/.travis.yml b/.travis.yml
index 50c0c13176..265ddf81e1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,6 +26,9 @@ cache:
   - third_party/v8/third_party/llvm-build/
 
 install:
+# Because prebuilt/ is cached, we need to manually reset changes that might
+# happen to the sha1 files here.
+- git checkout -- prebuilt
 - nvm install v8
 - nvm use --delete-prefix v8
 - node -v
diff --git a/prebuilt/linux64/sccache.sha1 b/prebuilt/linux64/sccache.sha1
index 75ee1cc842..09966b6d69 100644
--- a/prebuilt/linux64/sccache.sha1
+++ b/prebuilt/linux64/sccache.sha1
@@ -1 +1,2 @@
-be5e7f887af952dbe190d31290b84830da859f72
\ No newline at end of file
+eb8a16722a8019259244022b9c2e0412aeafefdd
+
diff --git a/prebuilt/mac/sccache.sha1 b/prebuilt/mac/sccache.sha1
index 6f8d0545d6..51230357a1 100644
--- a/prebuilt/mac/sccache.sha1
+++ b/prebuilt/mac/sccache.sha1
@@ -1 +1 @@
-962934c8a014c9342cee3b3e82dc0cd93d32875a
\ No newline at end of file
+573863cf8284cfeffdbf3983d38c1b87663be724
\ No newline at end of file
diff --git a/prebuilt/win/sccache.exe.sha1 b/prebuilt/win/sccache.exe.sha1
index 3d9de4bce1..4ce4a11680 100644
--- a/prebuilt/win/sccache.exe.sha1
+++ b/prebuilt/win/sccache.exe.sha1
@@ -1 +1 @@
-e86e1be158c650ade13ee58748421963acf5e8b2
\ No newline at end of file
+780e971f6651a1cd142bf2f6a8403068fb62d2f8
\ No newline at end of file