diff --git a/.github/workflows/R-CMD-check-all.yaml b/.github/workflows/R-CMD-check-all.yaml
index a0a0172..8efb4ef 100644
--- a/.github/workflows/R-CMD-check-all.yaml
+++ b/.github/workflows/R-CMD-check-all.yaml
@@ -5,6 +5,8 @@ on:
   pull_request:
     branches: [main, master]
     
+name: R-CMD-check-all
+
 jobs:
     changes:
       runs-on: ubuntu-latest
@@ -15,24 +17,24 @@ jobs:
         packages: ${{ steps.filter.outputs.changes }}
       steps:
       # For pull requests it's not necessary to checkout the code
+      - uses: actions/checkout@v2
       - uses: dorny/paths-filter@v2
         id: filter
         with:
           filters: |
-            testpkg01: testpkg01
-            testpkg02: testpkg02
+            testpkg01: 'testpkg01/**'
+            testpkg02: 'testpkg02/**'
 
-      # JOB to build and test each of modified packages
-      build:
-        needs: changes
-        secrets: inherit
-        strategy:
-          matrix:
-            # Parse JSON array containing names of all filters matching any of changed files
-            # e.g. ['package1', 'package2'] if both package folders contains changes
-            package: ${{ fromJSON(needs.changes.outputs.packages) }}
-        runs-on: ubuntu-20.04
-        steps:
-          - uses: ./.github/workflows/R-CMD-check.yaml
-            with: 
-              pkg-path: ${{ matrix.package }}
+    # JOB to build and test each of modified packages
+    build:
+      needs: changes
+      # https://github.com/dorny/paths-filter/issues/66
+      if: ${{ needs.changes.outputs.packages != '[]' && needs.changes.outputs.packages != '' }}
+      strategy:
+        matrix:
+          # see https://github.com/dorny/paths-filter
+          package: ${{ fromJSON(needs.changes.outputs.packages) }}
+      uses: ./.github/workflows/R-CMD-check.yaml
+      secrets: inherit
+      with: 
+        pkg-path: ${{ matrix.package }}
diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 260398e..f7ac095 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -10,26 +10,24 @@ name: R-CMD-check
 
 jobs:
   R-CMD-check:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       R_KEEP_PKG_SOURCE: yes
     steps:
       - uses: actions/checkout@v2
-        working-directory: ${{ inputs.pkg-path }}
-
       - uses: r-lib/actions/setup-r@v2
         with:
           use-public-rspm: true
-        working-directory: ${{ inputs.pkg-path }}
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: [cover, goodpractice, rcmdcheck, lintr]
-        working-directory: ${{ inputs.pkg-path }}
+          extra-packages: rcmdcheck, any::covr, any::goodpractice, any::lintr
+          working-directory: ${{ inputs.pkg-path }}
 
       - uses: r-lib/actions/check-r-package@v2
-        working-directory: ${{ inputs.pkg-path }}
+        with:
+          working-directory: ${{ inputs.pkg-path }}
 
       - name: Code coverage
         run: covr::package_coverage()
diff --git a/testpkg01/DESCRIPTION b/testpkg01/DESCRIPTION
index bdc943f..fea93a7 100644
--- a/testpkg01/DESCRIPTION
+++ b/testpkg01/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: testpkg01
 Title: What the Package Does (One Line, Title Case)
-Version: 0.0.0.9001
+Version: 0.0.0.9006
 Authors@R: 
     person("First", "Last", , "first.last@example.com", role = c("aut", "cre"),
            comment = c(ORCID = "YOUR-ORCID-ID"))
diff --git a/testpkg01/NAMESPACE b/testpkg01/NAMESPACE
index 6ae9268..01843dc 100644
--- a/testpkg01/NAMESPACE
+++ b/testpkg01/NAMESPACE
@@ -1,2 +1,3 @@
 # Generated by roxygen2: do not edit by hand
 
+export(hello)
diff --git a/testpkg01/R/hello.R b/testpkg01/R/hello.R
new file mode 100644
index 0000000..db5044e
--- /dev/null
+++ b/testpkg01/R/hello.R
@@ -0,0 +1,5 @@
+#' Hello world
+#' @export 
+hello <- function() {
+    "Hello World 2!"
+}
\ No newline at end of file
diff --git a/testpkg01/man/hello.Rd b/testpkg01/man/hello.Rd
new file mode 100644
index 0000000..3c9d2ff
--- /dev/null
+++ b/testpkg01/man/hello.Rd
@@ -0,0 +1,11 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/hello.R
+\name{hello}
+\alias{hello}
+\title{Hello world}
+\usage{
+hello()
+}
+\description{
+Hello world
+}
diff --git a/testpkg02/DESCRIPTION b/testpkg02/DESCRIPTION
index 5078aac..16091f5 100644
--- a/testpkg02/DESCRIPTION
+++ b/testpkg02/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: testpkg02
 Title: What the Package Does (One Line, Title Case)
-Version: 0.0.0.9000
+Version: 0.0.0.9004
 Authors@R: 
     person("First", "Last", , "first.last@example.com", role = c("aut", "cre"),
            comment = c(ORCID = "YOUR-ORCID-ID"))