diff --git a/.github/workflows/R_CMD_check_Hades.yaml b/.github/workflows/R_CMD_check_Hades.yaml
index 8f7d37e0..0ba1cc92 100644
--- a/.github/workflows/R_CMD_check_Hades.yaml
+++ b/.github/workflows/R_CMD_check_Hades.yaml
@@ -20,12 +20,12 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          #- {os: windows-latest, r: '4.2.3', rtools: '42', rspm: "https://cloud.r-project.org"}
-          #- {os: macOS-latest, r: '4.2.3', rtools: '42', rspm: "https://cloud.r-project.org"}
+          - {os: windows-latest, r: '4.2.3', rtools: '42', rspm: "https://cloud.r-project.org"}
+          - {os: macOS-latest, r: '4.2.3', rtools: '42', rspm: "https://cloud.r-project.org"}
           - {os: ubuntu-20.04, r: '4.2.3', rtools: '42', rspm: "https://packagemanager.rstudio.com/cran/__linux__/focal/latest"}
-          #- {os: windows-latest, r: 'release', rtools: '', rspm: "https://cloud.r-project.org"}
-          #- {os: macOS-latest, r: 'release', rtools: '', rspm: "https://cloud.r-project.org"}
-          #- {os: ubuntu-20.04, r: 'release', rtools: '', rspm: "https://packagemanager.rstudio.com/cran/__linux__/focal/latest"}
+          - {os: windows-latest, r: 'release', rtools: '', rspm: "https://cloud.r-project.org"}
+          - {os: macOS-latest, r: 'release', rtools: '', rspm: "https://cloud.r-project.org"}
+          - {os: ubuntu-20.04, r: 'release', rtools: '', rspm: "https://packagemanager.rstudio.com/cran/__linux__/focal/latest"}
 
     env:
       GITHUB_PAT: ${{ secrets.GH_TOKEN }}