diff --git a/src/api/json/catalog.json b/src/api/json/catalog.json
index 354a3613b37..938073a44a6 100644
--- a/src/api/json/catalog.json
+++ b/src/api/json/catalog.json
@@ -3265,11 +3265,6 @@
       "fileMatch": ["haxelib.json"],
       "url": "https://raw.githubusercontent.com/HaxeFoundation/haxelib/master/schema.json"
     },
-    {
-      "name": "Hayagriva",
-      "description": "A bibliography management format for the modern age",
-      "url": "https://jassielof.github.io/json-schemas/docs/hayagriva.schema.json"
-    },
     {
       "name": "Hayson",
       "description": "Project Haystack data",
@@ -6409,12 +6404,6 @@
       ],
       "url": "https://raw.githubusercontent.com/eliashaeussler/typo3-vendor-bundler/refs/heads/main/res/typo3-vendor-bundler.schema.json"
     },
-    {
-      "name": "Typst Manifest",
-      "description": "Typst package manifest file (typst.toml)",
-      "fileMatch": ["typst.toml"],
-      "url": "https://jassielof.github.io/json-schemas/docs/typst.schema.json"
-    },
     {
       "name": "typos.toml",
       "description": "typos configuration file",
diff --git a/src/schema-validation.jsonc b/src/schema-validation.jsonc
index 0b34a2856db..34d8dddc188 100644
--- a/src/schema-validation.jsonc
+++ b/src/schema-validation.jsonc
@@ -382,10 +382,8 @@
     "renovate.json",
     "markdownlint.json",
     "geojson.json",
-    "hayagriva.json",
     "semgrep.json",
     "taskfile.json",
-    "typst.json",
     "neoload.json",
     "xunit-2.2.json",
     "xunit-2.3.json",
diff --git a/src/schemas/json/github-issue-forms.json b/src/schemas/json/github-issue-forms.json
index 33597f65276..510411a32d5 100644
--- a/src/schemas/json/github-issue-forms.json
+++ b/src/schemas/json/github-issue-forms.json
@@ -791,7 +791,6 @@
                       "Twig",
                       "Type Language",
                       "TypeScript",
-                      "Typst",
                       "UltiSnip",
                       "UltiSnips",
                       "Unified Parallel C",
@@ -1804,7 +1803,6 @@
                       "typ",
                       "type language",
                       "typescript",
-                      "typst",
                       "udiff",
                       "unified parallel c",
                       "unity3d asset",
diff --git a/src/schemas/json/hayagriva.json b/src/schemas/json/hayagriva.json
deleted file mode 100644
index c6e62624626..00000000000
--- a/src/schemas/json/hayagriva.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "$ref": "https://jassielof.github.io/json-schemas/docs/hayagriva.schema.json"
-}
diff --git a/src/schemas/json/typst.json b/src/schemas/json/typst.json
deleted file mode 100644
index d1ce795cd4c..00000000000
--- a/src/schemas/json/typst.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "$ref": "https://jassielof.github.io/json-schemas/docs/typst.schema.json"
-}