diff --git a/doc/tex/cdi_cman.tex b/doc/tex/cdi_cman.tex
index 6e2fc9083908a2c539b60c579e4a094bd6717c86..1296ee2719087507df10b76e7c61a87c50e37a63 100644
--- a/doc/tex/cdi_cman.tex
+++ b/doc/tex/cdi_cman.tex
@@ -135,7 +135,7 @@
 \end{picture}
 
 \begin{flushright}
-{\large\bfseries Climate Data Interface \\ Version 1.9.8 \\ October 2019}
+{\large\bfseries Climate Data Interface \\ Version 1.9.9 \\ October 2020}
 \end{flushright}
 
 \vfill
diff --git a/doc/tex/cdi_fman.tex b/doc/tex/cdi_fman.tex
index 43fb320ebcc22570d36ec9d073f7c1869dafd726..dcd26ff92b98079a503355df986263a9cb4839c8 100644
--- a/doc/tex/cdi_fman.tex
+++ b/doc/tex/cdi_fman.tex
@@ -132,7 +132,7 @@
 \end{picture}
 
 \begin{flushright}
-{\large\bfseries Climate Data Interface \\ Version 1.9.8 \\ October 2019}
+{\large\bfseries Climate Data Interface \\ Version 1.9.9 \\ October 2020}
 \end{flushright}
 
 \vfill