diff --git a/vignette.Rmd.orig b/vignette.Rmd.orig
index 3c859f5..2ae2a38 100644
--- a/vignette.Rmd.orig
+++ b/vignette.Rmd.orig
@@ -93,7 +93,7 @@ repo2w(three_dates)
 
 ```
 
-To ilustrate the development of the main policy rate – i.e. `czechrates::repo2w()` – we can consider a more recent history:
+To illustrate the development of the main policy rate – i.e. `czechrates::repo2w()` – we can consider a more recent history:
 
 ```{r recent-development-ir}
 library(czechrates)
diff --git a/vignettes/vignette.Rmd b/vignettes/vignette.Rmd
index d27ba8d..7faff8b 100644
--- a/vignettes/vignette.Rmd
+++ b/vignettes/vignette.Rmd
@@ -118,7 +118,7 @@ repo2w(three_dates)
 ## 3 2020-05-13  0.0025
 ```
 
-To ilustrate the development of the main policy rate – i.e. `czechrates::repo2w()` – we can consider a more recent history:
+To illustrate the development of the main policy rate – i.e. `czechrates::repo2w()` – we can consider a more recent history:
 
 
 ```r