diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 0b41702..d124019 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -15,11 +15,11 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.19
+          go-version-file: 'go.mod'
       - name: lint
         uses: golangci/golangci-lint-action@v4.0.0
         with:
-          version: v1.50.1
+          version: v1.56.1
 
   tests-on-unix:
     needs: golangci-lint # run after golangci-lint action to not produce duplicated errors
@@ -27,9 +27,8 @@ jobs:
     strategy:
       matrix:
         golang:
-          - "1.18"
-          - "1.19"
-          - "1.20"
+          - "stable"
+          - "oldstable"
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
diff --git a/.golangci.yml b/.golangci.yml
index 09e8f73..b26b1c1 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -60,7 +60,7 @@ linters:
   disable-all: true
   enable:
     - bodyclose # checks whether HTTP response body is closed successfully [fast: false, auto-fix: false]
-    - depguard # Go linter that checks if package imports are in a list of acceptable packages [fast: false, auto-fix: false]
+
     - dogsled # Checks assignments with too many blank identifiers (e.g. x, _, _, _, := f()) [fast: true, auto-fix: false]
     - errcheck # Errcheck is a program for checking for unchecked errors in go programs. These unchecked errors can be critical bugs in some cases [fast: false, auto-fix: false]
     - errorlint # errorlint is a linter for that can be used to find code that will cause problems with the error wrapping scheme introduced in Go 1.13. [fast: false, auto-fix: false]
@@ -99,6 +99,7 @@ linters:
 #    - asciicheck # Simple linter to check that your code does not contain non-ASCII identifiers [fast: true, auto-fix: false]
 #    - cyclop # checks function and package cyclomatic complexity [fast: false, auto-fix: false]
 #    - deadcode # Finds unused code [fast: false, auto-fix: false]
+#    - depguard # Go linter that checks if package imports are in a list of acceptable packages [fast: false, auto-fix: false]
 #    - dupl # Tool for code clone detection [fast: true, auto-fix: false]
 #    - durationcheck # check for two durations multiplied together [fast: false, auto-fix: false]
 #    - exhaustivestruct # Checks if all struct's fields are initialized [fast: false, auto-fix: false]
diff --git a/Makefile b/Makefile
index bc32db8..8f3cffc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # A Self-Documenting Makefile: http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
 
 SOURCE_FILES?=./...
-GOLANGCI_VERSION=v1.50.1
+GOLANGCI_VERSION=v1.56.1
 COVERAGE=coverage.out
 
 export PATH := ./bin:$(PATH)
diff --git a/cobra2snooty.go b/cobra2snooty.go
index ec7603a..29ca1e7 100644
--- a/cobra2snooty.go
+++ b/cobra2snooty.go
@@ -107,7 +107,7 @@ func GenDocs(cmd *cobra.Command, w io.Writer) error {
 
 	if cmd.Runnable() {
 		buf.WriteString(syntaxHeader)
-		buf.WriteString(fmt.Sprintf("\n   %s\n\n", strings.ReplaceAll(cmd.UseLine(), "[flags]", "[options]")))
+		_, _ = fmt.Fprintf(buf, "\n   %s\n\n", strings.ReplaceAll(cmd.UseLine(), "[flags]", "[options]"))
 		buf.WriteString(".. Code end marker, please don't delete this comment\n\n")
 	}
 	if err := printArgs(buf, cmd); err != nil {
@@ -134,7 +134,7 @@ func GenDocs(cmd *cobra.Command, w io.Writer) error {
 			}
 			cname := name + " " + child.Name()
 			ref = strings.ReplaceAll(cname, " ", separator)
-			buf.WriteString(fmt.Sprintf("* :ref:`%s` - %s\n", ref, child.Short))
+			_, _ = fmt.Fprintf(buf, "* :ref:`%s` - %s\n", ref, child.Short)
 		}
 		buf.WriteString("\n")
 	}
@@ -150,7 +150,7 @@ func GenDocs(cmd *cobra.Command, w io.Writer) error {
 			}
 			cname := name + " " + child.Name()
 			ref = strings.ReplaceAll(cname, " ", separator)
-			buf.WriteString(fmt.Sprintf("   %s </command/%s>\n", child.Name(), ref))
+			_, _ = fmt.Fprintf(buf, "   %s </command/%s>\n", child.Name(), ref)
 		}
 		buf.WriteString("\n")
 	}
diff --git a/examples.go b/examples.go
index 2b986b6..dc2b169 100644
--- a/examples.go
+++ b/examples.go
@@ -43,6 +43,6 @@ func printExamples(buf *bytes.Buffer, cmd *cobra.Command) {
 		}
 		buf.WriteString(`.. code-block::
 `)
-		buf.WriteString(fmt.Sprintf("\n  %s%s\n", comment, indentString(example, identChar)))
+		_, _ = fmt.Fprintf(buf, "\n  %s%s\n", comment, indentString(example, identChar))
 	}
 }
diff --git a/go.mod b/go.mod
index fff213f..8e4ae69 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/mongodb-labs/cobra2snooty
 
-go 1.18
+go 1.20
 
 require (
 	github.com/spf13/cobra v1.8.0