diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -134,11 +134,10 @@
 debug.yaml` and loading the resulting `debug.gme` on your pen.  It will then
 read out the codes, as a sequence of english digits.
 
-We are also collecting template files, where the OIDs are commented; these can
-be found in the `./templates` directory. Please improve and contribute!
+If you want to convert existing audio files of almost any format, and you have
+`ffmpeg` installed, you can use 
 
-Again, please let us know if you have problems, but also tell us what fun
-things you did if you succeded.
+    ffmpeg -i input-audio-in-some.fmt -ar 22050 -ac 1 foo.ogg
 
 Text to speech
 --------------
diff --git a/tttool.cabal b/tttool.cabal
--- a/tttool.cabal
+++ b/tttool.cabal
@@ -1,5 +1,5 @@
 name:                tttool
-version:             1.6.1.1
+version:             1.6.1.2
 synopsis:            Working with files for the Tiptoi® pen
 description:         The Ravensburger Tiptoi® pen is programmed via special
                      files. Their file format has been reverse engineered; this
@@ -60,7 +60,7 @@
     template-haskell >= 2.7 && < 2.12,
 
     JuicyPixels >= 3.2.5   &&   < 3.3,
-    aeson       >= 0.7     &&   < 0.12,
+    aeson       >= 0.7     &&   < 1.1,
     hashable    == 1.2.*,
     haskeline   == 0.7.*,
     mtl         == 2.1.*   ||  == 2.2.*,