diff --git a/.gitignore b/.gitignore
index 5e9e8f7a..bea7c556 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ util/bot/golang
 util/bot/gyp
 util/bot/libFuzzer
 util/bot/llvm-build
+util/bot/nasm-win32.exe
 util/bot/perl-win32
 util/bot/perl-win32.zip
 util/bot/sde-linux64
diff --git a/util/bot/UPDATING b/util/bot/UPDATING
index b358f510..614a78dc 100644
--- a/util/bot/UPDATING
+++ b/util/bot/UPDATING
@@ -36,26 +36,26 @@ cmake-mac.tar.gz: Follow the same instructions as above on a Mac, but replace
     The current revision was built against cmake-3.10.0.tar.gz.
 
 cmake-win32.zip: Update to the latest prebuilt release of CMake, found at
-    https://cmake.org/download/. Use the file labeled "Windows ZIP". The
-    download will be named cmake-VERSION-win32-x86.zip.
+    https://cmake.org/download/. Use the file labeled "Windows win64-x64
+    ZIP". The download will be named cmake-VERSION-win64-x64.zip.
 
-    The current revision is cmake-3.10.1-win32-x86.zip.
+    The current revision is cmake-3.11.4-win64-x64.zip
 
 nasm-win32.exe: Update to the appropriate release of NASM, found at
     https://www.nasm.us/. Use the same version as Chromium, found at
     https://chromium.googlesource.com/chromium/src/+/master/third_party/nasm/README.chromium
-    Extract nasm.exe from the download named nasm-VERSION-win32.zip.
+    Extract nasm.exe from the download named nasm-VERSION-win64.zip.
 
-    The current revision is nasm-2.13.03-win32.zip.
+    The current revision is nasm-2.13.03-win64.zip.
 
     TODO(davidben): The Chromium link currently does not work. It will get
     filled in in the future. See https://crbug.com/766721.
 
-perl-win32.zip: Update to the latest 32-bit prebuilt "Portable" edition of
+perl-win32.zip: Update to the latest 64-bit prebuilt "Portable" edition of
     Strawberry Perl, found at http://strawberryperl.com/releases.html. The
-    download will be named strawberry-perl-VERSION-32bit-portable.zip.
+    download will be named strawberry-perl-VERSION-64bit-portable.zip.
 
-    The current revision is strawberry-perl-5.26.1.1-32bit-portable.zip.
+    The current revision is strawberry-perl-5.26.2.1-64bit-portable.zip.
 
 yasm-win32.exe: Update to the appropriate release of Yasm. Use the same version
     as Chromium, found at
@@ -73,3 +73,5 @@ but upload it with the following command. (Note the bucket is different.)
     upload_to_google_storage.py -b chrome-boringssl-sde sde-linux64.tar.bz2
 
 The current revision is sde-external-8.9.0-2017-08-06-lin.tar.bz2.
+
+When adding new files, remember to update .gitignore.
diff --git a/util/bot/cmake-win32.zip.sha1 b/util/bot/cmake-win32.zip.sha1
index 22926a36..574df8ad 100644
--- a/util/bot/cmake-win32.zip.sha1
+++ b/util/bot/cmake-win32.zip.sha1
@@ -1 +1 @@
-f3ba5a7d4be36d6eba1795011ba0926bb651f35f
\ No newline at end of file
+f4fac544e5d8392b3f2fcc967e22b473d7cf8e79
\ No newline at end of file
diff --git a/util/bot/nasm-win32.exe.sha1 b/util/bot/nasm-win32.exe.sha1
index 009bb3c7..62afef4d 100644
--- a/util/bot/nasm-win32.exe.sha1
+++ b/util/bot/nasm-win32.exe.sha1
@@ -1 +1 @@
-41438548185ed402ad713b4d5b90187737585d4a
\ No newline at end of file
+fe003e1128188bba6f54307802051f2eddfdee85
\ No newline at end of file
diff --git a/util/bot/perl-win32.zip.sha1 b/util/bot/perl-win32.zip.sha1
index a1859954..ac0c3f00 100644
--- a/util/bot/perl-win32.zip.sha1
+++ b/util/bot/perl-win32.zip.sha1
@@ -1 +1 @@
-1245124da188c699fb41c4b5a60622bd0d363106
\ No newline at end of file
+10a112b4d5f4efbbba4e45ccbe1fa50943e106c6
\ No newline at end of file