diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1fb216a..cd2846b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ## Breaking Changes
 
 ## Changes since v4.1.0
+- [#325](https://github.com/pusher/oauth2_proxy/pull/325) dist.sh: use sha256sum (@syscll)
 
 # v4.1.0
 
diff --git a/dist.sh b/dist.sh
index 583475c9..c161ac32 100755
--- a/dist.sh
+++ b/dist.sh
@@ -37,7 +37,7 @@ for ARCH in "${ARCHS[@]}"; do
 	cd release
 
 	# Create sha256sum for architecture specific binary
-	shasum -a 256 ${BINARY}-${VERSION}.${ARCH}.${GO_VERSION}/${BINARY} > ${BINARY}-${VERSION}.${ARCH}-sha256sum.txt
+	sha256sum ${BINARY}-${VERSION}.${ARCH}.${GO_VERSION}/${BINARY} > ${BINARY}-${VERSION}.${ARCH}-sha256sum.txt
 
 	# Create tar file for architecture specific binary
 	tar -czvf ${BINARY}-${VERSION}.${ARCH}.${GO_VERSION}.tar.gz ${BINARY}-${VERSION}.${ARCH}.${GO_VERSION}