diff --git a/cgcs-patch/centos/build_srpm.data b/cgcs-patch/centos/build_srpm.data
index c8fc32b5..6284e232 100644
--- a/cgcs-patch/centos/build_srpm.data
+++ b/cgcs-patch/centos/build_srpm.data
@@ -1 +1 @@
-TIS_PATCH_VER=26
+TIS_PATCH_VER=27
diff --git a/cgcs-patch/centos/cgcs-patch.spec b/cgcs-patch/centos/cgcs-patch.spec
index 665c169c..d500d992 100644
--- a/cgcs-patch/centos/cgcs-patch.spec
+++ b/cgcs-patch/centos/cgcs-patch.spec
@@ -15,6 +15,7 @@ BuildRequires: python2-wheel
 BuildRequires: systemd-units
 BuildRequires: systemd-devel
 Requires: python-devel
+Requires: python-crypto
 Requires: /bin/bash
 
 %description