diff --git a/src/paperless/validators.py b/src/paperless/validators.py
index dea1f5185..beb87d7b3 100644
--- a/src/paperless/validators.py
+++ b/src/paperless/validators.py
@@ -14,10 +14,10 @@ ALLOWED_SVG_TAGS: set[str] = {
     "text",
     "tspan",
     "defs",
-    "linearGradient",
-    "radialGradient",
+    "lineargradient",
+    "radialgradient",
     "stop",
-    "clipPath",
+    "clippath",
     "use",
     "title",
     "desc",
@@ -52,14 +52,14 @@ ALLOWED_SVG_ATTRIBUTES: set[str] = {
     "y1",
     "x2",
     "y2",
-    "gradientTransform",
-    "gradientUnits",
+    "gradienttransform",
+    "gradientunits",
     "offset",
     "stop-color",
     "stop-opacity",
     "clip-path",
-    "viewBox",
-    "preserveAspectRatio",
+    "viewbox",
+    "preserveaspectratio",
     "href",
     "xlink:href",
     "font-family",
@@ -68,6 +68,7 @@ ALLOWED_SVG_ATTRIBUTES: set[str] = {
     "text-anchor",
     "xmlns",
     "xmlns:xlink",
+    "version",
 }