diff --git a/ChangeLog b/ChangeLog
index 0fcfe9533fa27ea81d0ac59f192243d402cf5deb..04a2f8773c7372bad9bdc8fa1c5d5bdb1c1c9d2d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2014-01-29 Jana Mendrok <jana.mendrok@ltu.se>
+
+	* ARTS-XML-DATA-2-1-66
+
+	* spectroscopy/Perrin/CO2.xml.gz: More corrections (pressure broadening
+	parameterisation were degrading towards high m).
+
+	* spectroscopy/Perrin/README: Updated accordingly.
+
 2014-01-29 Jana Mendrok <jana.mendrok@ltu.se>
 
 	* ARTS-XML-DATA-2-1-65
diff --git a/spectroscopy/Perrin/CO2.xml.gz b/spectroscopy/Perrin/CO2.xml.gz
index a06100be255530a17e7f1d83c704daeeb8648eba..0bf7bd8d27f3e747db9ce4989ba01940a80cb60f 100644
Binary files a/spectroscopy/Perrin/CO2.xml.gz and b/spectroscopy/Perrin/CO2.xml.gz differ
diff --git a/spectroscopy/Perrin/README b/spectroscopy/Perrin/README
index c8e896cd1ba21bd4fc3ba6f05bf7cce15f75cd79..2230ace10b1a86f43898cbd669cdaa9e85054e98 100644
--- a/spectroscopy/Perrin/README
+++ b/spectroscopy/Perrin/README
@@ -59,7 +59,7 @@ Latest version (note, they are from different years...):
 Mar  5 09:44 C3H8.xml
 Mar  6 13:11 CH4.xml
 Feb 29 15:02 CO.xml
-Jan 29 09:44 CO2.xml.gz
+Jan 29 16:37 CO2.xml.gz
 Feb 29 15:01 H2CO.xml
 Jan 21 17:18 H2O.xml
 Mar  6 13:12 H2O2.xml