diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index c8c8362..22324ee 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Thu Nov  5 08:52:51 UTC 2020 - Wolfgang Rosenauer <wr@rosenauer.org>
+
+- Mozilla Thunderbird 78.4.1
+  * Bugfixes and minor features
+    https://www.thunderbird.net/en-US/thunderbird/78.4.1/releasenotes/
+
 -------------------------------------------------------------------
 Tue Oct 20 11:54:05 UTC 2020 - Wolfgang Rosenauer <wr@rosenauer.org>
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 07a97fa..2095793 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -26,8 +26,8 @@
 # major 69
 # mainver %major.99
 %define major          78
-%define mainver        %major.4.0
-%define orig_version   78.4.0
+%define mainver        %major.4.1
+%define orig_version   78.4.1
 %define orig_suffix    %{nil}
 %define update_channel release
 %define source_prefix  thunderbird-%{orig_version}
diff --git a/l10n-78.4.0.tar.xz b/l10n-78.4.0.tar.xz
deleted file mode 100644
index 7ca0a2e..0000000
--- a/l10n-78.4.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:c280de013f63dac39fcb906b99112b0e95366ee8c1374eaaf109aca87375eca1
-size 29086680
diff --git a/l10n-78.4.1.tar.xz b/l10n-78.4.1.tar.xz
new file mode 100644
index 0000000..e9dde65
--- /dev/null
+++ b/l10n-78.4.1.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e93a10108de1d02ddbf85fc75917cb92e1e7901d7db66992d5813ddf102011b5
+size 29092680
diff --git a/tar_stamps b/tar_stamps
index 55a6a58..71b85d0 100644
--- a/tar_stamps
+++ b/tar_stamps
@@ -1,10 +1,10 @@
 PRODUCT="thunderbird"
 CHANNEL="esr78"
-VERSION="78.4.0"
+VERSION="78.4.1"
 VERSION_SUFFIX=""
-PREV_VERSION="78.3.3"
+PREV_VERSION="78.4.0"
 PREV_VERSION_SUFFIX=""
 #SKIP_LOCALES="" # Uncomment to skip l10n and compare-locales-generation
 RELEASE_REPO="https://hg.mozilla.org/releases/comm-esr78"
-RELEASE_TAG="d5c3faff83924f56859ea4584eb0610c68a0cafa"
-RELEASE_TIMESTAMP="20201019003438"
+RELEASE_TAG="1d4c73485e55ea698f466acca4625d21db1362e7"
+RELEASE_TIMESTAMP="20201104231226"
diff --git a/thunderbird-78.4.0.source.tar.xz b/thunderbird-78.4.0.source.tar.xz
deleted file mode 100644
index bfb9e01..0000000
--- a/thunderbird-78.4.0.source.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:341a63c22a06c4d3d2468410d26248253a2d4eddc7d1f6aaaa1ac974005dca67
-size 361176060
diff --git a/thunderbird-78.4.0.source.tar.xz.asc b/thunderbird-78.4.0.source.tar.xz.asc
deleted file mode 100644
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--- a/thunderbird-78.4.0.source.tar.xz.asc
+++ /dev/null
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