diff --git a/Pipfile b/Pipfile
index 0dd3684..53f01c1 100644
--- a/Pipfile
+++ b/Pipfile
@@ -12,5 +12,6 @@ sphinxcontrib-wavedrom = "*"
 jinja2 = "*"
 sphinx-design = "*"
 sphinxext-rediraffe = "*"
+cairosvg = "*"
 
 [dev-packages]
diff --git a/Pipfile.lock b/Pipfile.lock
index 0964305..293a7ba 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "6347a5af1290d85e2400f86655efcbb9a6515155e64ccedf3f3d2c89e8950ec6"
+            "sha256": "4871316c65bcbbb94f998169e96528cc1419ac10576035390bdf9a509664433a"
         },
         "pipfile-spec": 6,
         "requires": {},
@@ -64,11 +64,12 @@
         },
         "cairosvg": {
             "hashes": [
-                "sha256:07cbf4e86317b27a92318a4cac2a4bb37a5e9c1b8a27355d06874b22f85bef9f",
-                "sha256:eab46dad4674f33267a671dce39b64be245911c901c70d65d2b7b0821e852bf5"
+                "sha256:1debb00cd2da11350d8b6f5ceb739f1b539196d71d5cf5eb7363dbd1bfbc8dc5",
+                "sha256:4b82d07d145377dffdfc19d9791bd5fb65539bb4da0adecf0bdbd9cd4ffd7c68"
             ],
-            "markers": "python_version >= '3.9'",
-            "version": "==2.8.2"
+            "index": "pypi",
+            "markers": "python_version >= '3.10'",
+            "version": "==2.9.0"
         },
         "certifi": {
             "hashes": [