diff --git a/ui/package-lock.json b/ui/package-lock.json
index 3f1df9cf..095650af 100644
--- a/ui/package-lock.json
+++ b/ui/package-lock.json
@@ -13044,19 +13044,6 @@
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       }
     },
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-    "ra-language-dutch": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/ra-language-dutch/-/ra-language-dutch-3.4.1.tgz",
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     "ra-language-english": {
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       "resolved": "https://registry.npmjs.org/ra-language-english/-/ra-language-english-3.4.1.tgz",
@@ -13065,119 +13052,6 @@
         "ra-core": "^3.4.1"
       }
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-    "ra-language-french": {
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-      "resolved": "https://registry.npmjs.org/ra-language-french/-/ra-language-french-3.4.1.tgz",
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-            "@types/istanbul-reports": "^1.1.1",
-            "@types/yargs": "^13.0.0"
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-            "@sheerun/mutationobserver-shim": "^0.3.2",
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-            "wait-for-expect": "^1.2.0"
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-            "ansi-styles": "^3.2.0",
-            "react-is": "^16.8.4"
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-          "requires": {
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-            "classnames": "~2.2.5",
-            "date-fns": "^1.29.0",
-            "eventemitter3": "^3.0.0",
-            "inflection": "~1.12.0",
-            "lodash": "~4.17.5",
-            "prop-types": "^15.6.1",
-            "query-string": "^5.1.1",
-            "recompose": "~0.26.0",
-            "reselect": "~3.0.0"
-          }
-        }
-      }
-    },
-    "ra-language-italian": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/ra-language-italian/-/ra-language-italian-3.0.0.tgz",
-      "integrity": "sha512-DUl1BTwYn06ype4ttUmnCfhq0BrrKKx+XuBJkjeIoesKjnT72iccF+/Dq+KUtJhzExVmeWQBA8DzI+0Z3QF+bA=="
-    },
-    "ra-language-portuguese": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/ra-language-portuguese/-/ra-language-portuguese-1.6.0.tgz",
-      "integrity": "sha512-9PAxgrisjmDOTRefjCe2y2ruYQw/iqXnXgUt09vOYUcjY4J0ctabJ4+joGI0jV/x9icF9c7Pui2USc5QDRTktQ=="
-    },
     "ra-ui-materialui": {
       "version": "3.4.2",
       "resolved": "https://registry.npmjs.org/ra-ui-materialui/-/ra-ui-materialui-3.4.2.tgz",
diff --git a/ui/package.json b/ui/package.json
index 8a6b682b..19b16fa5 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -9,11 +9,6 @@
     "md5-hex": "^3.0.1",
     "prop-types": "^15.7.2",
     "ra-data-json-server": "^3.4.1",
-    "ra-language-chinese": "^2.0.5",
-    "ra-language-dutch": "^3.4.1",
-    "ra-language-french": "^3.4.1",
-    "ra-language-italian": "^3.0.0",
-    "ra-language-portuguese": "^1.6.0",
     "react": "^16.13.1",
     "react-admin": "^3.4.2",
     "react-dom": "^16.13.1",