diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index 777e3e76b9d30..8b598329a3e8b 100644
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -16,6 +16,7 @@ packages:
 - "bsdmainutils"
 - "binutils-gold"
 - "ca-certificates"
+- "python"
 reference_datetime: "2016-01-01 00:00:00"
 remotes:
 - "url": "https://github.com/HOdlcoin/HOdlcoin.git"
diff --git a/contrib/gitian-descriptors/gitian-osx.yml b/contrib/gitian-descriptors/gitian-osx.yml
index eb57a0dad5ebd..2781b5decc468 100644
--- a/contrib/gitian-descriptors/gitian-osx.yml
+++ b/contrib/gitian-descriptors/gitian-osx.yml
@@ -24,6 +24,8 @@ packages:
 - "python-dev"
 - "python-setuptools"
 - "fonts-tuffy"
+- "ca-certificates"
+- "python"
 reference_datetime: "2016-01-01 00:00:00"
 remotes:
 - "url": "https://github.com/HOdlcoin/HOdlcoin.git"
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index a7118f349b3fc..6e254c4889751 100644
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -18,6 +18,8 @@ packages:
 - "g++-mingw-w64"
 - "nsis"
 - "zip"
+- "ca-certificates"
+- "python"
 reference_datetime: "2016-01-01 00:00:00"
 remotes:
 - "url": "https://github.com/HOdlcoin/HOdlcoin.git"