diff --git a/csfieldguide/package-lock.json b/csfieldguide/package-lock.json
index ae1542e16..2ec3f9775 100644
--- a/csfieldguide/package-lock.json
+++ b/csfieldguide/package-lock.json
@@ -39,7 +39,7 @@
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                 "pixrem": "5.0.0",
                 "popper.js": "1.16.1",
-                "postcss": "8.4.34",
+                "postcss": "8.4.35",
                 "postcss-flexbugs-fixes": "5.0.2",
                 "sass": "1.70.0",
                 "vinyl-buffer": "1.0.1",
@@ -10790,9 +10790,9 @@
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-            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.34.tgz",
-            "integrity": "sha512-4eLTO36woPSocqZ1zIrFD2K1v6wH7pY1uBh0JIM2KKfrVtGvPFiAku6aNOP0W1Wr9qwnaCsF0Z+CrVnryB2A8Q==",
+            "version": "8.4.35",
+            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.35.tgz",
+            "integrity": "sha512-u5U8qYpBCpN13BsiEB0CbR1Hhh4Gc0zLFuedrHJKMctHCHAGrMdG0PRM/KErzAL3CU6/eckEtmHNB3x6e3c0vA==",
             "dev": true,
             "funding": [
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@@ -22919,9 +22919,9 @@
             "dev": true
         },
         "postcss": {
-            "version": "8.4.34",
-            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.34.tgz",
-            "integrity": "sha512-4eLTO36woPSocqZ1zIrFD2K1v6wH7pY1uBh0JIM2KKfrVtGvPFiAku6aNOP0W1Wr9qwnaCsF0Z+CrVnryB2A8Q==",
+            "version": "8.4.35",
+            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.35.tgz",
+            "integrity": "sha512-u5U8qYpBCpN13BsiEB0CbR1Hhh4Gc0zLFuedrHJKMctHCHAGrMdG0PRM/KErzAL3CU6/eckEtmHNB3x6e3c0vA==",
             "dev": true,
             "requires": {
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diff --git a/csfieldguide/package.json b/csfieldguide/package.json
index 4d4fe3c04..6835cd4ac 100644
--- a/csfieldguide/package.json
+++ b/csfieldguide/package.json
@@ -35,7 +35,7 @@
         "multiple-select": "1.7.0",
         "pixrem": "5.0.0",
         "popper.js": "1.16.1",
-        "postcss": "8.4.34",
+        "postcss": "8.4.35",
         "postcss-flexbugs-fixes": "5.0.2",
         "sass": "1.70.0",
         "vinyl-buffer": "1.0.1",