diff --git a/index.toml b/index.toml
index bee4971..630558a 100644
--- a/index.toml
+++ b/index.toml
@@ -44,6 +44,11 @@ file = "mods/nullscape.pw.toml"
 hash = "eb9e018bcea14732b53ca4678593c1e9f7bab63cc11f8bba497475bf975c20be"
 metafile = true
 
+[[files]]
+file = "mods/tectonic.pw.toml"
+hash = "de210caebe9cf9f5571342a2f3ceab59c3202d1c3a507e7a398a1938624e64f6"
+metafile = true
+
 [[files]]
 file = "mods/terralith.pw.toml"
 hash = "970bd250c0bbd6ce0249c6e5bde09adabda4969e13ead743f684549b31beaace"
diff --git a/mods/tectonic.pw.toml b/mods/tectonic.pw.toml
new file mode 100644
index 0000000..bd128c1
--- /dev/null
+++ b/mods/tectonic.pw.toml
@@ -0,0 +1,13 @@
+name = "Tectonic"
+filename = "tectonic-fabric-1.19-2.3.4.jar"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/lWDHr9jE/versions/yyZJI5WW/tectonic-fabric-1.19-2.3.4.jar"
+hash-format = "sha1"
+hash = "0209b06b4536eb4b27ca2d835c64c4abf9f8b0f2"
+
+[update]
+[update.modrinth]
+mod-id = "lWDHr9jE"
+version = "yyZJI5WW"
diff --git a/pack.toml b/pack.toml
index 11584ca..f6c07aa 100644
--- a/pack.toml
+++ b/pack.toml
@@ -6,7 +6,7 @@ pack-format = "packwiz:1.1.0"
 [index]
 file = "index.toml"
 hash-format = "sha256"
-hash = "8d2f062a37eaede04a077deb0f013fb2bba5d00a9a2ef3e025d4907ba0b57b07"
+hash = "621958f16305fb79960839b397fc95192a713a36e00fa929e5600e562fa82b8e"
 
 [versions]
 fabric = "0.15.11"