diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index d1f0d085..5f09c776 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,3 +4,11 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    ignore:
+      # Pinned to the most popular versions
+      - dependency-name: "@ts-common/fs"
+      - dependency-name: "@ts-common/iterator"
+      - dependency-name: "@ts-common/json"
+      - dependency-name: "@ts-common/json-parser"
+      - dependency-name: "@ts-common/source-map"
+      - dependency-name: "@ts-common/string-map"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76a28eb2..731355d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,15 @@
 - remove unused dependencies
   - acorn
   - kind-of
+- pin pre-release dependencies
+  - `@ts-common/fs` to `0.2.0`
+  - `@ts-common/iterator` to `0.3.6`
+  - `@ts-common/json` to `0.3.1`
+  - `@ts-common/json-parser` to `0.9.0`
+  - `@ts-common/source-map` to `0.5.0`
+  - `@ts-common/string-map` to `0.3.0`
+  - `json-pointer` to `0.6.2`
+  - `source-map` to `0.7.6`
 
 ## 0.12.1 2025-09-18
 
diff --git a/package-lock.json b/package-lock.json
index ae56651b..4b59540e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,20 +9,20 @@
       "version": "0.12.1",
       "license": "MIT",
       "dependencies": {
-        "@ts-common/fs": "^0.2.0",
-        "@ts-common/iterator": "^0.3.6",
-        "@ts-common/json": "^0.3.1",
-        "@ts-common/json-parser": "^0.9.0",
-        "@ts-common/source-map": "^0.5.0",
-        "@ts-common/string-map": "^0.3.0",
+        "@ts-common/fs": "0.2.0",
+        "@ts-common/iterator": "0.3.6",
+        "@ts-common/json": "0.3.1",
+        "@ts-common/json-parser": "0.9.0",
+        "@ts-common/source-map": "0.5.0",
+        "@ts-common/string-map": "0.3.0",
         "autorest": "^3.6.1",
         "js-yaml": "^3.13.1",
-        "json-pointer": "^0.6.2",
+        "json-pointer": "0.6.2",
         "json-refs": "^3.0.15",
         "lodash": "^4.17.21",
         "minimist": "^1.2.8",
         "set-value": "^4.1.0",
-        "source-map": "^0.7.4",
+        "source-map": "0.7.6",
         "tslib": "^2.6.3",
         "winston": "^3.13.0",
         "yargs": "^13.2.2",
diff --git a/package.json b/package.json
index fd04b221..61da7645 100644
--- a/package.json
+++ b/package.json
@@ -9,20 +9,20 @@
   "description": "OpenApi Specification Diff tool",
   "license": "MIT",
   "dependencies": {
-    "@ts-common/fs": "^0.2.0",
-    "@ts-common/iterator": "^0.3.6",
-    "@ts-common/json": "^0.3.1",
-    "@ts-common/json-parser": "^0.9.0",
-    "@ts-common/source-map": "^0.5.0",
-    "@ts-common/string-map": "^0.3.0",
+    "@ts-common/fs": "0.2.0",
+    "@ts-common/iterator": "0.3.6",
+    "@ts-common/json": "0.3.1",
+    "@ts-common/json-parser": "0.9.0",
+    "@ts-common/source-map": "0.5.0",
+    "@ts-common/string-map": "0.3.0",
     "autorest": "^3.6.1",
     "js-yaml": "^3.13.1",
-    "json-pointer": "^0.6.2",
+    "json-pointer": "0.6.2",
     "json-refs": "^3.0.15",
     "lodash": "^4.17.21",
     "minimist": "^1.2.8",
     "set-value": "^4.1.0",
-    "source-map": "^0.7.4",
+    "source-map": "0.7.6",
     "tslib": "^2.6.3",
     "winston": "^3.13.0",
     "yargs": "^13.2.2",