diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index a651b1e..605a577 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -29,7 +29,7 @@ jobs:
       - name: Install demo datasets
         shell: bash -l {0}
         run: |
-          Rscript -e 'install.packages(c("mimic.demo", "eicu.demo"), repos="https://eth-mds.github.io/physionet-demo")'
+          Rscript -e 'install.packages("eicu.demo", repos="https://eth-mds.github.io/physionet-demo")'
       - name: Run R CMD check
         shell: bash -l {0}
         run: |
diff --git a/environment.yaml b/environment.yaml
index ff62ed1..fa3dd30 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -36,4 +36,5 @@ dependencies:
   - r-pkgload
   - r-codetools
   - r-qpdf
-  - qpdf
\ No newline at end of file
+  - qpdf
+  - r-mimic-demo
\ No newline at end of file