diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 732f5b7..0623d67 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -27,12 +27,6 @@ jobs:
           - {os: ubuntu-latest,  r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,  r: 'release'}
           - {os: ubuntu-latest,  r: 'oldrel'}
-          # - {os: ubuntu-latest,  r: 'oldrel-1'}
-          # - {os: ubuntu-latest,  r: 'oldrel-2'}
-          # # dependencies 'DescTools' and 'pbkrtest' (a dependency of 'car') depend on R (>= 4.2.0)
-          # - {os: ubuntu-latest,  r: 'oldrel-3'}
-          # - {os: ubuntu-latest,  r: 'oldrel-4'}
-          # - {os: ubuntu-latest,  r: 'oldrel-5'}
 
     env:
       R_KEEP_PKG_SOURCE: yes      
@@ -51,7 +45,7 @@ jobs:
           
       - uses: r-lib/actions/setup-pandoc@v2
 
-      - name: "[Custom block] [macOS] Install spatial libraries"
+      - name: "[Custom block] [MacOS] Install spatial libraries"
         if: runner.os == 'macOS'
         run: brew install udunits gdal proj geos
       
@@ -80,11 +74,11 @@ jobs:
           remotes::install_cran("rcmdcheck")
         shell: Rscript {0}
         
-      - name: "[Custom block] [macOS] Install units from source"
+      - name: "[Custom block] [MacOS] Install units from source"
         if: runner.os == 'macOS'
         run: |
-          install.packages('udunits2', type = 'source', configure.args = '--with-udunits2-include=/usr/include/udunits2')
-          install.packages('units', type = 'source', configure.args = '--with-udunits2-include=/usr/include/udunits2')
+          install.packages('udunits2', type = 'source', configure.args = '--with-udunits2-lib=/usr/local/udunits2')
+          install.packages('units', type = 'source', configure.args = '--with-udunits2-lib=/usr/local/udunits2')
         shell: Rscript {0}
       
       - name: Session info