diff --git a/libzypp-17.32.6.tar.bz2 b/libzypp-17.32.6.tar.bz2
index b689dfc..e138017 100644
--- a/libzypp-17.32.6.tar.bz2
+++ b/libzypp-17.32.6.tar.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:1e0cc7b80e2f8114d0433de70952663205c2ee7ba28fa4e84267e214e5c27e7b
-size 5598666
+oid sha256:7a7cf7448c896cd3b17560712340d553a91ca1bd675505db878a15d9c2e5e634
+size 5600165
diff --git a/libzypp.spec b/libzypp.spec
index 6075a27..396d212 100644
--- a/libzypp.spec
+++ b/libzypp.spec
@@ -99,8 +99,17 @@ BuildRequires:  gettext-devel
 BuildRequires:  graphviz
 BuildRequires:  libxml2-devel
 BuildRequires:  yaml-cpp-devel
+
+# we are loading libproxy dynamically, however we have
+# a failsafe unit test that links against libproxy to make
+# sure the API did not change
 BuildRequires:  libproxy-devel
 
+#keep the libproxy runtime requires for old releases
+%if 0%{?sle_version} <= 150500
+Requires: libproxy1
+%endif
+
 %if 0%{?fedora_version} || 0%{?rhel_version} || 0%{?centos_version}
 BuildRequires:  pkgconfig
 %else