diff --git a/vignettes/articles/smooth-qr.Rmd b/vignettes/articles/smooth-qr.Rmd
index 801934e8..a73ffd22 100644
--- a/vignettes/articles/smooth-qr.Rmd
+++ b/vignettes/articles/smooth-qr.Rmd
@@ -97,7 +97,7 @@ state cases and deaths. This sample data ranges from Dec. 31, 2020 to
 Dec. 31, 2021.
 
 ```{r}
-edf <- covid_case_death_rates
+edf <- epidatasets::covid_case_death_rates
 ```
 
 We will set the forecast date to be November 30, 2021 so that we can produce
diff --git a/vignettes/articles/symptom-surveys.Rmd b/vignettes/articles/symptom-surveys.Rmd
index af692726..cf801357 100644
--- a/vignettes/articles/symptom-surveys.Rmd
+++ b/vignettes/articles/symptom-surveys.Rmd
@@ -155,6 +155,7 @@ library(purrr)
 library(epipredict)
 library(recipes)
 
+case_num <- 200
 z <- epidatasets::county_smoothed_cli_comparison
 ```