diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index ad68c3b..2c4a10b 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Sun Sep 26 16:01:35 UTC 2021 - Wolfgang Rosenauer <wr@rosenauer.org>
+
+- Mozilla Thunderbird 91.1.2
+  * Thunderbird will now warn if an S/MIME encrypted message includes
+    BCC recipients
+  * several bugfixes listed on
+    https://www.thunderbird.net/en-US/thunderbird/91.1.2/releasenotes/
+
 -------------------------------------------------------------------
 Wed Sep 15 15:37:55 UTC 2021 - Wolfgang Rosenauer <wr@rosenauer.org>
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 27a9750..fa59a73 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -26,8 +26,8 @@
 # major 69
 # mainver %major.99
 %define major          91
-%define mainver        %major.1.1
-%define orig_version   91.1.1
+%define mainver        %major.1.2
+%define orig_version   91.1.2
 %define orig_suffix    %{nil}
 %define update_channel release
 %define source_prefix  thunderbird-%{orig_version}
diff --git a/l10n-91.1.1.tar.xz b/l10n-91.1.1.tar.xz
deleted file mode 100644
index 7f7c461..0000000
--- a/l10n-91.1.1.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e5137b4a077a610a5f92ed7763ad3c552b0cd34f585448d3136127ba782d3de1
-size 28627168
diff --git a/l10n-91.1.2.tar.xz b/l10n-91.1.2.tar.xz
new file mode 100644
index 0000000..2709a4f
--- /dev/null
+++ b/l10n-91.1.2.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e06f3578f89bfc37ee00e1304aee3979a87dd48702fe22d44907f2472c9714cb
+size 28586984
diff --git a/mozilla.sh.in b/mozilla.sh.in
index fbeebf7..8d250d4 100644
--- a/mozilla.sh.in
+++ b/mozilla.sh.in
@@ -88,7 +88,7 @@ export GNOME_DISABLE_CRASH_DIALOG=1
 WAYLAND_SUPPORTED=%WAYLAND_SUPPORTED
 
 # $XDG_SESSION_TYPE should contain either x11 or wayland
-if [ $WAYLAND_SUPPORTED -eq 1 ] && [ "$XDG_SESSION_TYPE" = "wayland" ] && [ ! -z "$MOZ_ENABLE_WAYLAND" ]; then
+if [ $WAYLAND_SUPPORTED -eq 1 ] && [ "$XDG_SESSION_TYPE" = "wayland" ] && [ -z "$MOZ_ENABLE_WAYLAND" ]; then
   export MOZ_ENABLE_WAYLAND=1
 fi
 
diff --git a/tar_stamps b/tar_stamps
index bad6bee..0679591 100644
--- a/tar_stamps
+++ b/tar_stamps
@@ -1,10 +1,10 @@
 PRODUCT="thunderbird"
 CHANNEL="esr91"
-VERSION="91.1.1"
+VERSION="91.1.2"
 VERSION_SUFFIX=""
-PREV_VERSION="91.1.0"
+PREV_VERSION="91.1.1"
 PREV_VERSION_SUFFIX=""
 #SKIP_LOCALES="" # Uncomment to skip l10n and compare-locales-generation
 RELEASE_REPO="https://hg.mozilla.org/releases/comm-esr91"
-RELEASE_TAG="ff307e08b1218c8988d09d15d74f1b974a4d45a6"
-RELEASE_TIMESTAMP="20210916142849"
+RELEASE_TAG="f6bebff25dd4b19be993e286d9594fde1b451516"
+RELEASE_TIMESTAMP="20210924213438"
diff --git a/thunderbird-91.1.1.source.tar.xz b/thunderbird-91.1.1.source.tar.xz
deleted file mode 100644
index b536045..0000000
--- a/thunderbird-91.1.1.source.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:05833526bb04985dc40fbf8d6907fea27ba560e7a1d7487c3f8c15c1a0b808cc
-size 401518048
diff --git a/thunderbird-91.1.1.source.tar.xz.asc b/thunderbird-91.1.1.source.tar.xz.asc
deleted file mode 100644
index 4ee0389..0000000
--- a/thunderbird-91.1.1.source.tar.xz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
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diff --git a/thunderbird-91.1.2.source.tar.xz b/thunderbird-91.1.2.source.tar.xz
new file mode 100644
index 0000000..94c1469
--- /dev/null
+++ b/thunderbird-91.1.2.source.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4c63a215761d8710e9cc78c938828ff532ace33a00d0d59332b30d3d45c3b0f3
+size 402607132
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new file mode 100644
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--- /dev/null
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