diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bcefe6b..7370dbc 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -38,6 +38,9 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-prebuild-
       - run: ./gimme module | grep ^export | tee -a "${GITHUB_ENV}"
+      - uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
       - run: make gimme-generate
       - uses: actions/upload-artifact@v3
         with:
@@ -84,6 +87,9 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-${{ matrix.env.target }}-${{ matrix.env.version }}-test-
             ${{ runner.os }}-${{ matrix.env.target }}-
+      - uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
       - uses: actions/download-artifact@v3
         with:
           name: gimme-generate-${{ runner.os }}
diff --git a/.testdata/sample-versions.txt b/.testdata/sample-versions.txt
index 672b6af..d36758c 100644
--- a/.testdata/sample-versions.txt
+++ b/.testdata/sample-versions.txt
@@ -12,8 +12,8 @@
 
 #
 
-1.19.3
-1.18.8
-1.17.13
-1.16.15
-1.15.15
+1.23.3
+1.22.9
+1.21.13
+1.20.14
+1.19.13
diff --git a/gimme b/gimme
index d984db8..49df494 100755
--- a/gimme
+++ b/gimme
@@ -55,7 +55,7 @@ set -o pipefail
 
 [[ ${GIMME_DEBUG} ]] && set -x
 
-readonly GIMME_VERSION="v1.8.0"
+readonly GIMME_VERSION="v1.8.1"
 readonly GIMME_COPYRIGHT="Copyright (c) 2022 gimme contributors"
 readonly GIMME_LICENSE_URL="https://raw.githubusercontent.com/urfave/gimme/${GIMME_VERSION}/LICENSE"
 export GIMME_VERSION
@@ -523,13 +523,13 @@ _list_versions() {
 	local current_version
 	current_version="$(go env GOROOT 2>/dev/null)"
 	current_version="${current_version##*/go}"
-	current_version="${current_version%%.${GIMME_OS}.*}"
+	current_version="${current_version%%."${GIMME_OS}".*}"
 
 	# 1.1 1.10 1.2 is bad; zsh has `setopt numeric_glob_sort` but bash
 	# doesn't appear to have anything like that.
 	for d in "${GIMME_VERSION_PREFIX}/go"*".${GIMME_OS}."*; do
 		local cleaned="${d##*/go}"
-		cleaned="${cleaned%%.${GIMME_OS}.*}"
+		cleaned="${cleaned%%."${GIMME_OS}".*}"
 		echo "${cleaned}"
 	done | _version_sort | while read -r cleaned; do
 		echo -en "${cleaned}"
@@ -652,7 +652,7 @@ _get_curr_stable() {
 		_update_stable "${stable}"
 	fi
 
-	cat "${stable}"
+	head -n 1 "${stable}"
 }
 
 _get_old_stable() {