diff --git a/package.json b/package.json
index 6d038556..a5c17e57 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "raw-loader": "4.0.1",
     "static-server": "2.2.1",
     "ts-jest": "26.5.1",
-    "ts-loader": "7.0.0",
+    "ts-loader": "9.5.4",
     "ts-node": "8.8.2",
     "tslint": "6.1.1",
     "typescript": "4.5.4",
diff --git a/packages/guess-ga/package.json b/packages/guess-ga/package.json
index 7df8e3c2..e4abdbc5 100644
--- a/packages/guess-ga/package.json
+++ b/packages/guess-ga/package.json
@@ -28,7 +28,7 @@
     "googleapis": "^67.0.0"
   },
   "devDependencies": {
-    "ts-loader": "7.0.0",
+    "ts-loader": "9.5.4",
     "typescript": "4.5.4"
   },
   "files": [
diff --git a/packages/guess-parser/package.json b/packages/guess-parser/package.json
index 68575193..d2143e2b 100644
--- a/packages/guess-parser/package.json
+++ b/packages/guess-parser/package.json
@@ -26,7 +26,7 @@
     "ts-evaluator": "0.1.0"
   },
   "devDependencies": {
-    "ts-loader": "7.0.0"
+    "ts-loader": "9.5.4"
   },
   "peerDependencies": {
     "typescript": ">=3.7.5"
diff --git a/packages/guess-webpack/package.json b/packages/guess-webpack/package.json
index ec4eb92f..d86268dc 100644
--- a/packages/guess-webpack/package.json
+++ b/packages/guess-webpack/package.json
@@ -57,7 +57,7 @@
   "devDependencies": {
     "@types/chalk": "2.2.0",
     "@types/table": "5.0.0",
-    "ts-loader": "7.0.0",
+    "ts-loader": "9.5.4",
     "typescript": "4.5.4"
   },
   "scripts": {