diff --git a/transport-interop/impl/go/v0.29/Makefile b/transport-interop/impl/go/v0.29/Makefile
index e3cc3d5..3a2f565 100644
--- a/transport-interop/impl/go/v0.29/Makefile
+++ b/transport-interop/impl/go/v0.29/Makefile
@@ -18,10 +18,10 @@ go-libp2p-${version}.zip:
 # This locks the exact contents of the specified version. This lets us use the
 # human readable name while still making sure the contents don't change.
 version.lock: go-libp2p-${version}.zip
-	shasum -a 256 go-libp2p-${version}.zip > $@
+	sha256sum go-libp2p-${version}.zip > $@
 
 verify-checksum: go-libp2p-${version}.zip
-	shasum -a 256 -c version.lock
+	sha256sum -c version.lock
 
 .PHONY: clean all verify-checksum
 
diff --git a/transport-interop/impl/go/v0.30/Makefile b/transport-interop/impl/go/v0.30/Makefile
index 67b913a..2dbb211 100644
--- a/transport-interop/impl/go/v0.30/Makefile
+++ b/transport-interop/impl/go/v0.30/Makefile
@@ -18,10 +18,10 @@ go-libp2p-${version}.zip:
 # This locks the exact contents of the specified version. This lets us use the
 # human readable name while still making sure the contents don't change.
 version.lock: go-libp2p-${version}.zip
-	shasum -a 256 go-libp2p-${version}.zip > $@
+	sha256sum go-libp2p-${version}.zip > $@
 
 verify-checksum: go-libp2p-${version}.zip
-	shasum -a 256 -c version.lock
+	sha256sum -c version.lock
 
 .PHONY: clean all verify-checksum
 
diff --git a/transport-interop/impl/go/v0.31/Makefile b/transport-interop/impl/go/v0.31/Makefile
index 9ff2dc1..61c2520 100644
--- a/transport-interop/impl/go/v0.31/Makefile
+++ b/transport-interop/impl/go/v0.31/Makefile
@@ -18,10 +18,10 @@ go-libp2p-${version}.zip:
 # This locks the exact contents of the specified version. This lets us use the
 # human readable name while still making sure the contents don't change.
 version.lock: go-libp2p-${version}.zip
-	shasum -a 256 go-libp2p-${version}.zip > $@
+	sha256sum go-libp2p-${version}.zip > $@
 
 verify-checksum: go-libp2p-${version}.zip
-	shasum -a 256 -c version.lock
+	sha256sum -c version.lock
 
 .PHONY: clean all verify-checksum