diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index f634a98..40f8b37 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,33 @@
+-------------------------------------------------------------------
+Fri Mar 23 09:39:40 UTC 2018 - wr@rosenauer.org
+
+- update to Thunderbird 52.7
+  * Searching message bodies of messages in local folders, including
+    filter and quick filter operations, did not find content in
+    message attachments
+  * Better error handling for Yahoo accounts
+- The following security fixes are included as part of the mozilla
+  platform. In general, these flaws cannot be exploited through
+  email in the Thunderbird product because scripting is disabled
+  when reading mail, but are potentially risks in browser or
+  browser-like contexts (MFSA 2018-09, bsc#1085130, bsc#1085671):
+  * CVE-2018-5127 (bmo#1430557)
+    Buffer overflow manipulating SVG animatedPathSegList
+  * CVE-2018-5129 (bmo#1428947)
+    Out-of-bounds write with malformed IPC messages
+  * CVE-2018-5144 (bmo#1440926)
+    Integer overflow during Unicode conversion
+  * CVE-2018-5146 (bmo#1446062)
+    Out of bounds memory write in libvorbis
+  * CVE-2018-5125 (bmo1416529,bmo#1434580,bmo#1434384,bmo#1437450,
+    bmo#1437507,bmo#1426988,bmo#1438425,bmo#1324042,bmo#1437087,
+    bmo#1443865,bmo#1425520)
+    Memory safety bugs fixed in Firefox 59, Firefox ESR 52.7, and
+    Thunderbird 52.7
+  * CVE-2018-5145 (bmo#1261175,bmo#1348955)
+    Memory safety bugs fixed in Firefox ESR 52.7 and Thunderbird
+    52.7
+
 -------------------------------------------------------------------
 Wed Jan 24 11:40:38 UTC 2018 - wr@rosenauer.org
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 41a2cbc..f23307d 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -17,9 +17,9 @@
 #
 
 
-%define mainversion 52.6
+%define mainversion 52.7
 %define update_channel release
-%define releasedate 201801240000
+%define releasedate 201803230000
 
 %bcond_without mozilla_tb_kde4
 %bcond_with    mozilla_tb_valgrind
diff --git a/compare-locales.tar.xz b/compare-locales.tar.xz
index aa7b2e3..7396f13 100644
--- a/compare-locales.tar.xz
+++ b/compare-locales.tar.xz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:8a99c19f2d81689b8d0f47dce8f0a6eff1bd8e8380223d68e2fe9f9b60621f49
-size 28408
+oid sha256:5619c69ab0ddc415df1634783c3ee50c80dc6690d2bf2ce0c1d1103311c9ef87
+size 28372
diff --git a/create-tar.sh b/create-tar.sh
index 31b8285..eb6d114 100644
--- a/create-tar.sh
+++ b/create-tar.sh
@@ -2,8 +2,8 @@
 
 CHANNEL="esr52"
 BRANCH="releases/comm-$CHANNEL"
-RELEASE_TAG="THUNDERBIRD_52_6_0_RELEASE"
-VERSION="52.6"
+RELEASE_TAG="THUNDERBIRD_52_7_0_RELEASE"
+VERSION="52.7"
 
 echo "cloning $BRANCH..."
 hg clone http://hg.mozilla.org/$BRANCH thunderbird
diff --git a/l10n-52.6.tar.xz b/l10n-52.6.tar.xz
deleted file mode 100644
index 6b0a6d5..0000000
--- a/l10n-52.6.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:5cd993b34ac353fd3a3f2f072bf6a61be9e67d078022c59a99948fee3028d90e
-size 26224072
diff --git a/l10n-52.7.tar.xz b/l10n-52.7.tar.xz
new file mode 100644
index 0000000..80527cf
--- /dev/null
+++ b/l10n-52.7.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e5489e085b0432ceed78f5542b2e09380e0586d9d8cb209433c45db150783d5a
+size 26230056
diff --git a/thunderbird-52.6-source.tar.xz b/thunderbird-52.6-source.tar.xz
deleted file mode 100644
index 494dff1..0000000
--- a/thunderbird-52.6-source.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1dbf6f8948349c091ecf1004cc518fd82ff5c5fdf9953699b5acb5b8bcc653ad
-size 242254396
diff --git a/thunderbird-52.7-source.tar.xz b/thunderbird-52.7-source.tar.xz
new file mode 100644
index 0000000..ded3680
--- /dev/null
+++ b/thunderbird-52.7-source.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:30e34c7c4facfe1601db7a9983a2dc1375b417ed7af35758256d38b6dcae9ad1
+size 242326388