diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 81d9937..bed8865 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -22,7 +22,7 @@ jobs:
         config:
           - {os: macos-latest,   r: 'release'}
           - {os: windows-latest, r: 'release'}
-          - {os: windows-latest, r: '3.6'}
+          - {os: windows-latest, r: '4.0'}
           - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,   r: 'release'}
           - {os: ubuntu-latest,   r: 'oldrel-1'}
diff --git a/DESCRIPTION b/DESCRIPTION
index 4613860..de3bdaf 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -48,5 +48,5 @@ Roxygen: list(markdown = TRUE)
 Encoding: UTF-8
 VignetteBuilder: knitr
 Depends: 
-    R (>= 3.6)
+    R (>= 4.0)
 Language: en-GB
diff --git a/NEWS.md b/NEWS.md
index 52a521b..86bdd5c 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,6 +1,7 @@
 # readODS 2.3.2
 
 * Fix #207, trim off large or unused test files
+* Fix #209, require R >= 4.0.0 due to `cpp11`
 
 # readODS 2.3.1