diff --git a/contrib/gitian-build.py b/contrib/gitian-build.py
index faf8b014a..fc7fbb764 100755
--- a/contrib/gitian-build.py
+++ b/contrib/gitian-build.py
@@ -51,8 +51,10 @@ def build():
     os.chdir('gitian-builder')
     os.makedirs('inputs', exist_ok=True)
 
-    subprocess.check_call(['wget', '-N', '-P', 'inputs', 'http://downloads.sourceforge.net/project/osslsigncode/osslsigncode/osslsigncode-1.7.1.tar.gz'])
+    subprocess.check_call(['wget', '-N', '-P', 'inputs', 'https://downloads.sourceforge.net/project/osslsigncode/osslsigncode/osslsigncode-1.7.1.tar.gz'])
     subprocess.check_call(['wget', '-N', '-P', 'inputs', 'https://bitcoincore.org/cfields/osslsigncode-Backports-to-1.7.1.patch'])
+    subprocess.check_call(["echo 'a8c4e9cafba922f89de0df1f2152e7be286aba73f78505169bc351a7938dd911 inputs/osslsigncode-Backports-to-1.7.1.patch' | sha256sum -c"], shell=True)
+    subprocess.check_call(["echo 'f9a8cdb38b9c309326764ebc937cba1523a3a751a7ab05df3ecc99d18ae466c9 inputs/osslsigncode-1.7.1.tar.gz' | sha256sum -c"], shell=True)
     subprocess.check_call(['make', '-C', '../bitcoin/depends', 'download', 'SOURCES_PATH=' + os.getcwd() + '/cache/common'])
 
     if args.linux:
diff --git a/doc/release-process.md b/doc/release-process.md
index 3bdbabcf0..9fcd5e229 100644
--- a/doc/release-process.md
+++ b/doc/release-process.md
@@ -87,7 +87,9 @@ Ensure gitian-builder is up-to-date:
     pushd ./gitian-builder
     mkdir -p inputs
     wget -P inputs https://bitcoincore.org/cfields/osslsigncode-Backports-to-1.7.1.patch
+    echo 'a8c4e9cafba922f89de0df1f2152e7be286aba73f78505169bc351a7938dd911 inputs/osslsigncode-Backports-to-1.7.1.patch' | sha256sum -c
     wget -P inputs https://downloads.sourceforge.net/project/osslsigncode/osslsigncode/osslsigncode-1.7.1.tar.gz
+    echo 'f9a8cdb38b9c309326764ebc937cba1523a3a751a7ab05df3ecc99d18ae466c9 inputs/osslsigncode-1.7.1.tar.gz' | sha256sum -c
     popd
 
 Create the macOS SDK tarball, see the [macOS readme](README_osx.md) for details, and copy it into the inputs directory.