diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 003aa1d..f7c9cee 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -23,7 +23,7 @@ jobs:
       matrix:
         config:
           - {os: macOS-latest, r: 'release'}
-          - {os: ubuntu-18.04, r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/bionic/latest"}
+          - {os: ubuntu-20.04, r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/focal/latest"}
           - {os: windows-latest, r: 'devel'}
           - {os: windows-latest, r: 'oldrel'}
           - {os: windows-latest, r: 'release'}
@@ -39,11 +39,11 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: r-lib/actions/setup-r@master
+      - uses: r-lib/actions/setup-r@v2
         with:
           r-version: ${{ matrix.config.r }}
 
-      - uses: r-lib/actions/setup-pandoc@master
+      - uses: r-lib/actions/setup-pandoc@v2
 
       - name: Query dependencies
         run: |
@@ -79,7 +79,7 @@ jobs:
 
       - name: Upload check results
         if: failure()
-        uses: actions/upload-artifact@master
+        uses: actions/upload-artifact@main
         with:
           name: ${{ runner.os }}-r${{ matrix.config.r }}-results
           path: check
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 9e3f693..a86c179 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: r-lib/actions/setup-r@v1
+      - uses: r-lib/actions/setup-r@v2
 
       - name: Query dependencies
         run: |
diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
index 0777756..99a3e6c 100644
--- a/.github/workflows/pkgdown.yaml
+++ b/.github/workflows/pkgdown.yaml
@@ -22,9 +22,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: r-lib/actions/setup-r@master
+      - uses: r-lib/actions/setup-r@v2
 
-      - uses: r-lib/actions/setup-pandoc@master
+      - uses: r-lib/actions/setup-pandoc@v2
 
       - name: Query dependencies
         run: |
diff --git a/.github/workflows/test-coverage.yaml b/.github/workflows/test-coverage.yaml
index db4580e..386388c 100644
--- a/.github/workflows/test-coverage.yaml
+++ b/.github/workflows/test-coverage.yaml
@@ -22,9 +22,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: r-lib/actions/setup-r@master
+      - uses: r-lib/actions/setup-r@v2
 
-      - uses: r-lib/actions/setup-pandoc@master
+      - uses: r-lib/actions/setup-pandoc@v2
 
       - name: Query dependencies
         run: |
diff --git a/.github/workflows/ultimate_write_to_influxdbcloud.yaml b/.github/workflows/ultimate_write_to_influxdbcloud.yaml
index 3c2cc1a..f283b24 100644
--- a/.github/workflows/ultimate_write_to_influxdbcloud.yaml
+++ b/.github/workflows/ultimate_write_to_influxdbcloud.yaml
@@ -19,9 +19,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: r-lib/actions/setup-r@master
+      - uses: r-lib/actions/setup-r@v2
 
-      - uses: r-lib/actions/setup-pandoc@master
+      - uses: r-lib/actions/setup-pandoc@v2
       
       - name: Install system dependencies
         if: runner.os == 'MacOS'