diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 7eb3e47e..94c767e9 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -108,19 +108,12 @@ jobs:
       sudo apt-get install -qq libxml2-dev libcurl4-openssl-dev libssl-dev libgit2-dev libharfbuzz-dev libfribidi-dev libfontconfig1-dev -y
       sudo apt-get install -qq libfreetype6-dev libpng-dev libtiff5-dev libjpeg-dev libuv1-dev -y
       sudo apt-get install -qq r-base -y
-      sudo R -e "install.packages('devtools', dependencies=TRUE)"
-      sudo R -e "install.packages('RANN', dependencies=TRUE)"
-      sudo R -e "install.packages('stringr', dependencies=TRUE)"
-      sudo R -e "install.packages('lme4', dependencies=TRUE)"
-      sudo R -e "install.packages('dplyr', dependencies=TRUE)"
-      sudo R -e "install.packages('reshape2', dependencies=TRUE)"
-      sudo R -e "install.packages('polycor', dependencies=TRUE)"
-      sudo R -e "install.packages('splines', dependencies=TRUE)"
-      sudo R -e "install.packages('gamlss', dependencies=TRUE)"
-      sudo R -e "install.packages('gamlss.dist', dependencies=TRUE)"
-      sudo R -e "install.packages('mice', dependencies=TRUE)"
-      sudo R -e "install.packages('data.table', dependencies=TRUE)"
-      sudo R -e "install.packages('childsds', dependencies=TRUE)"
+
+      # Use Posit Public Package Manager, which serves precompiled binary packages
+      # for this Ubuntu release instead of source - so dependencies are downloaded
+      # rather than compiled (the slow part). The HTTPUserAgent option is what makes
+      # the manager hand back binaries.
+      sudo R -q -e "options(repos=c(CRAN=paste0('https://packagemanager.posit.co/cran/__linux__/', system('lsb_release -cs', intern=TRUE), '/latest')), HTTPUserAgent=sprintf('R/%s R (%s)', getRversion(), paste(getRversion(), R.version\$platform, R.version\$arch, R.version\$os)), Ncpus=4); install.packages(c('devtools','RANN','stringr','lme4','dplyr','reshape2','polycor','splines','gamlss','gamlss.dist','mice','data.table','childsds'), dependencies=TRUE)"
 
     displayName: 'Install all dependencies for dsBase'
     condition: succeeded()