diff --git a/api/SVGNumber.json b/api/SVGNumber.json
index d45debaf2c7f95..79c14c10a523bc 100644
--- a/api/SVGNumber.json
+++ b/api/SVGNumber.json
@@ -11,7 +11,7 @@
             "version_added": true
           },
           "edge": {
-            "version_added": "≤18"
+            "version_added": "12"
           },
           "firefox": {
             "version_added": true
@@ -20,7 +20,7 @@
             "version_added": true
           },
           "ie": {
-            "version_added": null
+            "version_added": "9"
           },
           "opera": {
             "version_added": true
diff --git a/api/SVGNumberList.json b/api/SVGNumberList.json
index 76f9b028764f5e..eec54c52ab7cde 100644
--- a/api/SVGNumberList.json
+++ b/api/SVGNumberList.json
@@ -11,7 +11,7 @@
             "version_added": true
           },
           "edge": {
-            "version_added": "≤18"
+            "version_added": "12"
           },
           "firefox": {
             "version_added": true
@@ -20,7 +20,7 @@
             "version_added": true
           },
           "ie": {
-            "version_added": null
+            "version_added": "9"
           },
           "opera": {
             "version_added": true