diff --git a/extern/icu/tzdata/be.zip b/extern/icu/tzdata/be.zip
index 321a0db664..58fa274265 100644
Binary files a/extern/icu/tzdata/be.zip and b/extern/icu/tzdata/be.zip differ
diff --git a/extern/icu/tzdata/le.zip b/extern/icu/tzdata/le.zip
index 765e34202c..8571b2de0d 100644
Binary files a/extern/icu/tzdata/le.zip and b/extern/icu/tzdata/le.zip differ
diff --git a/extern/icu/tzdata/version.txt b/extern/icu/tzdata/version.txt
index f3edecae55..18cf32dc8e 100644
--- a/extern/icu/tzdata/version.txt
+++ b/extern/icu/tzdata/version.txt
@@ -1 +1 @@
-2020b
+2020c
diff --git a/src/common/TimeZones.h b/src/common/TimeZones.h
index 000059eb83..cc39d43e15 100644
--- a/src/common/TimeZones.h
+++ b/src/common/TimeZones.h
@@ -1,6 +1,6 @@
 // The content of this file is generated with help of update-ids utility Do not edit.
 
-static const char* BUILTIN_TIME_ZONE_VERSION = "2020b";
+static const char* BUILTIN_TIME_ZONE_VERSION = "2020c";
 
 // Do not change order of items in this array! The index corresponds to a TimeZone ID, which must be fixed!
 static const char* BUILTIN_TIME_ZONE_LIST[] = {