diff --git a/pkgs/servers/matrix-appservice-discord/default.nix b/pkgs/servers/matrix-appservice-discord/default.nix
index f8563ab57dae..b1d14319638d 100644
--- a/pkgs/servers/matrix-appservice-discord/default.nix
+++ b/pkgs/servers/matrix-appservice-discord/default.nix
@@ -22,7 +22,7 @@ in mkYarnPackage rec {
     owner = "matrix-org";
     repo = "matrix-appservice-discord";
     rev = "v${version}";
-    sha256 = pin.srcSha256;
+    hash = pin.srcHash;
   };
 
   packageJSON = ./package.json;
diff --git a/pkgs/servers/matrix-appservice-discord/pin.json b/pkgs/servers/matrix-appservice-discord/pin.json
index 57b7ffd28a2c..901864ef4474 100644
--- a/pkgs/servers/matrix-appservice-discord/pin.json
+++ b/pkgs/servers/matrix-appservice-discord/pin.json
@@ -1,5 +1,5 @@
 {
   "version": "3.1.1",
-  "srcSha256": "g681w7RD96/xKP+WnIyY4bcVHVQhysgDPZo4TgCRiuY=",
+  "srcHash": "sha256-g681w7RD96/xKP+WnIyY4bcVHVQhysgDPZo4TgCRiuY=",
   "yarnSha256": "0cm9yprj0ajmrdpap3p2lx3xrrkar6gghlxnj9127ks6p5c1ji3r"
 }
diff --git a/pkgs/servers/matrix-appservice-discord/update.sh b/pkgs/servers/matrix-appservice-discord/update.sh
index 4ffdc4b34db3..ec089d7a2189 100755
--- a/pkgs/servers/matrix-appservice-discord/update.sh
+++ b/pkgs/servers/matrix-appservice-discord/update.sh
@@ -22,7 +22,7 @@ if [ -z "$tag" ]; then
 fi
 
 src="https://raw.githubusercontent.com/$ORG/$PROJ/$tag"
-src_sha256=$(nix-prefetch-github $ORG $PROJ --rev ${tag} | jq -r .sha256)
+src_hash=$(nix-prefetch-github $ORG $PROJ --rev ${tag} | jq -r .hash)
 
 tmpdir=$(mktemp -d)
 trap 'rm -rf "$tmpdir"' EXIT
@@ -36,7 +36,7 @@ curl -O "$src/package.json"
 cat > pin.json << EOF
 {
   "version": "$(echo $tag | grep -P '(\d|\.)+' -o)",
-  "srcSha256": "$src_sha256",
+  "srcSha256": "$src_hash",
   "yarnSha256": "$yarn_sha256"
 }
 EOF