diff --git a/Pipfile b/Pipfile
index bb4bfec7..0163de0e 100644
--- a/Pipfile
+++ b/Pipfile
@@ -5,7 +5,7 @@ name = "pypi"
 
 [packages]
 cel-python = "==0.2.*"
-protobuf = "==5.*"
+protobuf = "==6.*"
 
 [dev-packages]
 pytest = "*"
diff --git a/Pipfile.lock b/Pipfile.lock
index 8a6b51fc..06352bf6 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "d2061d519b31b0d2e3d0b63d41022ebbdb6194c232ace3cd53f9c420de00d17e"
+            "sha256": "2244230d5507f6a004047e0856c65eea89ab850a6932e9a2e96f63511b32a3ff"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -42,21 +42,19 @@
         },
         "protobuf": {
             "hashes": [
-                "sha256:0a18ed4a24198528f2333802eb075e59dea9d679ab7a6c5efb017a59004d849f",
-                "sha256:0eb32bfa5219fc8d4111803e9a690658aa2e6366384fd0851064b963b6d1f2a7",
-                "sha256:3ea51771449e1035f26069c4c7fd51fba990d07bc55ba80701c78f886bf9c888",
-                "sha256:5da0f41edaf117bde316404bad1a486cb4ededf8e4a54891296f648e8e076620",
-                "sha256:6ce8cc3389a20693bfde6c6562e03474c40851b44975c9b2bf6df7d8c4f864da",
-                "sha256:84a57163a0ccef3f96e4b6a20516cedcf5bb3a95a657131c5c3ac62200d23252",
-                "sha256:a4fa6f80816a9a0678429e84973f2f98cbc218cca434abe8db2ad0bffc98503a",
-                "sha256:a8434404bbf139aa9e1300dbf989667a83d42ddda9153d8ab76e0d5dcaca484e",
-                "sha256:b89c115d877892a512f79a8114564fb435943b59067615894c3b13cd3e1fa107",
-                "sha256:c027e08a08be10b67c06bf2370b99c811c466398c357e615ca88c91c07f0910f",
-                "sha256:daaf63f70f25e8689c072cfad4334ca0ac1d1e05a92fc15c54eb9cf23c3efd84"
+                "sha256:3c25e51e1359f1f5fa3b298faa6016e650d148f214db2e47671131b9063c53be",
+                "sha256:47cd320b7db63e8c9ac35f5596ea1c1e61491d8a8eb6d8b45edc44760b53a4f6",
+                "sha256:535fb4e44d0236893d5cf1263a0f706f1160b689a7ab962e9da8a9ce4050b780",
+                "sha256:554d7e61cce2aa4c63ca27328f757a9f3867bce8ec213bf09096a8d16bcdcb6a",
+                "sha256:aa4f7dfaed0d840b03d08d14bfdb41348feaee06a828a8c455698234135b4075",
+                "sha256:b510f55ce60f84dc7febc619b47215b900466e3555ab8cb1ba42deb4496d6cc0",
+                "sha256:ba0706f948d0195f5cac504da156d88174e03218d9364ab40d903788c1903d7e",
+                "sha256:e3083660225fa94748ac2e407f09a899e6a28bf9c0e70c75def8d15706bf85fc",
+                "sha256:ed484f9ddd47f0f1bf0648806cccdb4fe2fb6b19820f9b79a5adf5dcfd1b8c5f"
             ],
             "index": "pypi",
-            "markers": "python_version >= '3.8'",
-            "version": "==5.29.3"
+            "markers": "python_version >= '3.9'",
+            "version": "==6.30.1"
         },
         "python-dateutil": {
             "hashes": [