diff --git a/main.go b/main.go
index 42c4b2e..701e8ca 100644
--- a/main.go
+++ b/main.go
@@ -23,7 +23,7 @@ FORMAT={{ .Archive.Format }}
 OWNER={{ $.Release.GitHub.Owner }}
 REPO={{ $.Release.GitHub.Name }}
 BINDIR=${BINDIR:-./bin}
-TMPDIR=${TMPDIR:-/tmp}
+test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
 
 VERSION=$1
 if [ -z "${VERSION}" ]; then
@@ -94,6 +94,7 @@ esac
 TARBALL=${NAME}.${FORMAT}
 URL=https://github.com/${OWNER}/${REPO}/releases/download/v${VERSION}/${TARBALL}
 
+mkdir -p ${TMPDIR}
 rm -f ${TMPDIR}/${TARBALL}
 download ${TMPDIR}/${TARBALL} ${URL}
 tar -C ${TMPDIR} -xzf ${TMPDIR}/${TARBALL}
diff --git a/samples/godownloader-goreleaser.sh b/samples/godownloader-goreleaser.sh
index 12ead96..76eac66 100644
--- a/samples/godownloader-goreleaser.sh
+++ b/samples/godownloader-goreleaser.sh
@@ -6,7 +6,7 @@ FORMAT=tar.gz
 OWNER=goreleaser
 REPO=goreleaser
 BINDIR=${BINDIR:-./bin}
-TMPDIR=${TMPDIR:-/tmp}
+test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
 
 VERSION=$1
 if [ -z "${VERSION}" ]; then
@@ -66,6 +66,8 @@ NAME=${BINARY}_${OS}_${ARCH}${ARM}
 TARBALL=${NAME}.${FORMAT}
 URL=https://github.com/${OWNER}/${REPO}/releases/download/v${VERSION}/${TARBALL}
 
+mkdir -p ${TMPDIR}
+rm -f ${TMPDIR}/${TARBALL}
 download ${TMPDIR}/${TARBALL} ${URL}
 tar -C ${TMPDIR} -xzf ${TMPDIR}/${TARBALL}
 install -d ${BINDIR}
diff --git a/samples/godownloader-hugo.sh b/samples/godownloader-hugo.sh
index 971f2b3..e0ed06e 100644
--- a/samples/godownloader-hugo.sh
+++ b/samples/godownloader-hugo.sh
@@ -6,7 +6,7 @@ FORMAT=tar.gz
 OWNER=spf13
 REPO=hugo
 BINDIR=${BINDIR:-./bin}
-TMPDIR=${TMPDIR:-/tmp}
+test -z "$TMPDIR" && TMPDIR="$(mktemp -d)"
 
 VERSION=$1
 if [ -z "${VERSION}" ]; then
@@ -83,6 +83,8 @@ NAME=${BINARY}_${VERSION}_${OS}-${ARCH}
 TARBALL=${NAME}.${FORMAT}
 URL=https://github.com/${OWNER}/${REPO}/releases/download/v${VERSION}/${TARBALL}
 
+mkdir -p ${TMPDIR}
+rm -f ${TMPDIR}/${TARBALL}
 download ${TMPDIR}/${TARBALL} ${URL}
 tar -C ${TMPDIR} -xzf ${TMPDIR}/${TARBALL}
 install -d ${BINDIR}