diff --git a/episodes/compare-interventions.Rmd b/episodes/compare-interventions.Rmd
index c4db9c2a..a3c245e9 100644
--- a/episodes/compare-interventions.Rmd
+++ b/episodes/compare-interventions.Rmd
@@ -7,8 +7,6 @@ exercises: 30 # exercise time in minutes
 
 ```{r setup, echo= FALSE, message = FALSE, warning = FALSE}
 require(ggplot2)
-require(pak)
-pak::pak("epiverse-trace/epidemics")
 library(epidemics)
 ```
 
diff --git a/episodes/model-choices.Rmd b/episodes/model-choices.Rmd
index 7ff5ab73..a0cf899c 100644
--- a/episodes/model-choices.Rmd
+++ b/episodes/model-choices.Rmd
@@ -7,8 +7,6 @@ exercises: 20 # exercise time in minutes
 
 ```{r setup, echo= FALSE, message = FALSE, warning = FALSE}
 require(ggplot2)
-require(pak)
-pak::pak("epiverse-trace/epidemics")
 library(epidemics)
 ```
 
diff --git a/episodes/modelling-interventions.Rmd b/episodes/modelling-interventions.Rmd
index 6a472f4d..ef44582c 100644
--- a/episodes/modelling-interventions.Rmd
+++ b/episodes/modelling-interventions.Rmd
@@ -7,8 +7,6 @@ exercises: 30 # exercise time in minutes
 
 ```{r setup, echo= FALSE, message = FALSE, warning = FALSE}
 require(ggplot2)
-require(pak)
-pak::pak("epiverse-trace/epidemics")
 library(epidemics)
 ```
 
diff --git a/episodes/simulating-transmission.Rmd b/episodes/simulating-transmission.Rmd
index ee3b243e..8c48c49b 100644
--- a/episodes/simulating-transmission.Rmd
+++ b/episodes/simulating-transmission.Rmd
@@ -10,8 +10,6 @@ require(testthat)
 require(tidyverse)
 require(DiagrammeR)
 require(webshot)
-require(pak)
-pak::pak("epiverse-trace/epidemics")
 library(epidemics)
 webshot::install_phantomjs(force = TRUE)
 ```