diff --git a/renv.lock b/renv.lock
index ef83289..f12e2b7 100644
--- a/renv.lock
+++ b/renv.lock
@@ -1,6 +1,6 @@
 {
   "R": {
-    "Version": "4.1.1",
+    "Version": "4.1.2",
     "Repositories": [
       {
         "Name": "CRAN",
@@ -25,10 +25,10 @@
     },
     "MASS": {
       "Package": "MASS",
-      "Version": "7.3-54",
+      "Version": "7.3-55",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "0e59129db205112e3963904db67fd0dc"
+      "Hash": "c5232ffb549f6d7a04a152c34ca1353d"
     },
     "Matrix": {
       "Package": "Matrix",
@@ -144,10 +144,10 @@
     },
     "class": {
       "Package": "class",
-      "Version": "7.3-19",
+      "Version": "7.3-20",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "1593b7beb067c8381c0d24e38bd778e0"
+      "Hash": "da09d82223e669d270e47ed24ac8686e"
     },
     "classInt": {
       "Package": "classInt",
@@ -312,10 +312,10 @@
     },
     "foreign": {
       "Package": "foreign",
-      "Version": "0.8-81",
+      "Version": "0.8-82",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "74628ea7a3be5ee8a7b5bb0a8e84882e"
+      "Hash": "32b25c97ce306a760c4d9f787991b5d9"
     },
     "fs": {
       "Package": "fs",
@@ -466,10 +466,10 @@
     },
     "lattice": {
       "Package": "lattice",
-      "Version": "0.20-44",
+      "Version": "0.20-45",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "f36bf1a849d9106dc2af72e501f9de41"
+      "Hash": "b64cdbb2b340437c4ee047a1f4c4377b"
     },
     "lazyeval": {
       "Package": "lazyeval",