diff --git a/r/scripts/test.R b/r/scripts/test.R
index a0f4725..e6e0ddf 100644
--- a/r/scripts/test.R
+++ b/r/scripts/test.R
@@ -55,5 +55,9 @@
 # Extract R code from files
 purrr::walk(files, extract_r_code, dir = td)
 
+# Fixes CI for newer reticulate by forcing reticulate to manage itself even if
+# it finds other Python installations on the host
+Sys.setenv(RETICULATE_PYTHON="managed")
+
 # Run tests
 testthat::test_dir(path = td)