diff --git a/chapter_18/meal_planner/Pipfile.lock b/chapter_18/meal_planner/Pipfile.lock
index 863b1d6..70d48c0 100644
--- a/chapter_18/meal_planner/Pipfile.lock
+++ b/chapter_18/meal_planner/Pipfile.lock
@@ -18,25 +18,26 @@
     "default": {
         "django": {
             "hashes": [
-                "sha256:1226168be1b1c7efd0e66ee79b0e0b58b2caa7ed87717909cd8a57bb13a7079a",
-                "sha256:9a4635813e2d498a3c01b10c701fe4a515d76dd290aaa792ccb65ca4ccb6b038"
+                "sha256:1ee37046b0bf2b61e83b3a01d067323516ec3b6f2b17cd49b1326dd4ba9dc913",
+                "sha256:90763c764738586b11d7e1f44828032c153366e43ad7f782908193a1bb2d6d92"
             ],
             "index": "pypi",
-            "version": "==2.2.13"
+            "version": "==2.2.27"
         },
         "pytz": {
             "hashes": [
-                "sha256:1c557d7d0e871de1f5ccd5833f60fb2550652da6be2693c1e02300743d21500d",
-                "sha256:b02c06db6cf09c12dd25137e563b31700d3b80fcc4ad23abb7a315f2789819be"
+                "sha256:3672058bc3453457b622aab7a1c3bfd5ab0bdae451512f6cf25f64ed37f5b87c",
+                "sha256:acad2d8b20a1af07d4e4c9d2e9285c5ed9104354062f275f3fcd88dcef4f1326"
             ],
-            "version": "==2019.3"
+            "version": "==2021.3"
         },
         "sqlparse": {
             "hashes": [
-                "sha256:40afe6b8d4b1117e7dff5504d7a8ce07d9a1b15aeeade8a2d10f130a834f8177",
-                "sha256:7c3dca29c022744e95b547e867cee89f4fce4373f3549ccd8797d8eb52cdb873"
+                "sha256:0c00730c74263a94e5a9919ade150dfc3b19c574389985446148402998287dae",
+                "sha256:48719e356bb8b42991bdbb1e8b83223757b93789c00910a616a071910ca4a64d"
             ],
-            "version": "==0.3.0"
+            "markers": "python_version >= '3.5'",
+            "version": "==0.4.2"
         }
     },
     "develop": {}