diff --git a/gsoap-2.8.89.tar.xz b/gsoap-2.8.89.tar.xz
deleted file mode 100644
index e56465c..0000000
--- a/gsoap-2.8.89.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:586a41c42282633a874f846a0da81d2749ffa1196f88e2cf644c73c4b157a3e3
-size 16223076
diff --git a/gsoap-2.8.91.tar.xz b/gsoap-2.8.91.tar.xz
new file mode 100644
index 0000000..875c9b4
--- /dev/null
+++ b/gsoap-2.8.91.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:279d6e21ea2eac008739e483280b63a8178fe6cb160d9d46ec6a43df9ad3546e
+size 16125560
diff --git a/gsoap.changes b/gsoap.changes
index 51388a8..d0c3f7f 100644
--- a/gsoap.changes
+++ b/gsoap.changes
@@ -1,3 +1,19 @@
+-------------------------------------------------------------------
+Thu Aug 15 14:22:59 UTC 2019 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to new upstream release 2.8.91
+  * Correction to fix soapcpp2 2.8.90 `-z#` flag enforcement
+    problem.
+- Removed revert-z.diff (solved upstream)
+
+-------------------------------------------------------------------
+Wed Aug 14 18:19:03 UTC 2019 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to new upstream release 2.8.90
+  * Internal changes related to gsoap's own build only.
+- Add revert-z.diff to counter a regression in handling the
+  soapcpp2 "-z" option introduced in 2.8.89.
+
 -------------------------------------------------------------------
 Sun Aug 11 13:33:42 UTC 2019 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/gsoap.spec b/gsoap.spec
index f6f7670..97f0de1 100644
--- a/gsoap.spec
+++ b/gsoap.spec
@@ -17,8 +17,8 @@
 
 
 Name:           gsoap
-%define lname	libgsoap-2_8_89
-Version:        2.8.89
+%define lname	libgsoap-2_8_91
+Version:        2.8.91
 Release:        0
 Summary:        Toolkit for SOAP/REST-based C/C++ server and client web service applications
 License:        SUSE-GPL-2.0+-with-openssl-exception
diff --git a/sanitize_source.sh b/sanitize_source.sh
index 7635c88..3fb9721 100644
--- a/sanitize_source.sh
+++ b/sanitize_source.sh
@@ -13,7 +13,7 @@ if ! which hardlink >/dev/null; then
 	exit 1;
 fi;
 
-version="2.8.89"
+version="2.8.91"
 shortver="2.8" # agh...
 if [ ! -e "gsoap_$version.zip" ]; then
 	wget -c "http://downloads.sf.net/gsoap2/gsoap_$version.zip"