diff --git a/package.json b/package.json
index 1147cc7d5d..a4fd635b50 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,6 @@
     "health:check": "pie-health check packages"
   },
   "dependencies": {
-    "core-js": "^3.48.0",
     "express": "^4.22.1"
   },
   "devDependencies": {
@@ -85,7 +84,6 @@
     "react-dom": "18.3.1",
     "jest": "29.7.0",
     "jest-config": "29.7.0",
-    "core-js": "^3.40.0",
     "d3-scale": "4.0.2",
     "d3-selection": "3.0.0",
     "@jest/test-sequencer": "29.7.0",
diff --git a/packages/graphing-solution-set/configure/package.json b/packages/graphing-solution-set/configure/package.json
index 5f81535e3b..8a8b76efc0 100644
--- a/packages/graphing-solution-set/configure/package.json
+++ b/packages/graphing-solution-set/configure/package.json
@@ -17,7 +17,6 @@
     "@pie-lib/graphing-solution-set": "3.2.0-next.11",
     "@pie-lib/math-rendering": "4.2.0-next.3",
     "classnames": "^2.2.5",
-    "core-js": "^3.40.0",
     "debug": "^4.1.1",
     "prop-types": "^15.6.2",
     "react": "18.3.1",
diff --git a/packages/graphing-solution-set/package.json b/packages/graphing-solution-set/package.json
index 552c1936e7..7fb4a32f46 100644
--- a/packages/graphing-solution-set/package.json
+++ b/packages/graphing-solution-set/package.json
@@ -22,7 +22,6 @@
     "@pie-lib/math-rendering": "4.2.0-next.3",
     "@pie-lib/render-ui": "5.2.0-next.4",
     "classnames": "^2.2.5",
-    "core-js": "^3.40.0",
     "debug": "^4.1.1",
     "react": "18.3.1",
     "react-dom": "18.3.1"
diff --git a/packages/graphing/configure/package.json b/packages/graphing/configure/package.json
index 213169ab3f..950aea50d6 100644
--- a/packages/graphing/configure/package.json
+++ b/packages/graphing/configure/package.json
@@ -17,7 +17,6 @@
     "@pie-lib/graphing": "3.2.0-next.11",
     "@pie-lib/math-rendering": "4.2.0-next.3",
     "classnames": "^2.2.5",
-    "core-js": "^3.40.0",
     "debug": "^4.1.1",
     "lodash-es": "^4.17.23",
     "prop-types": "^15.8.1",
diff --git a/packages/graphing/package.json b/packages/graphing/package.json
index f9221b9be5..8b7e158976 100644
--- a/packages/graphing/package.json
+++ b/packages/graphing/package.json
@@ -20,7 +20,6 @@
     "@pie-lib/math-rendering": "4.2.0-next.3",
     "@pie-lib/render-ui": "5.2.0-next.4",
     "classnames": "^2.2.5",
-    "core-js": "^3.40.0",
     "debug": "^4.1.1",
     "react": "18.3.1",
     "react-dom": "18.3.1"
diff --git a/yarn.lock b/yarn.lock
index a29938e6c8..dca2ec3e6d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6713,10 +6713,10 @@ core-js-compat@^3.48.0:
   dependencies:
     browserslist "^4.28.1"
 
-core-js@^2.4.0, core-js@^3.40.0, core-js@^3.48.0:
-  version "3.48.0"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.48.0.tgz#1f813220a47bbf0e667e3885c36cd6f0593bf14d"
-  integrity sha512-zpEHTy1fjTMZCKLHUZoVeylt9XrzaIN2rbPXEt0k+q7JE5CkCZdo6bNq55bn24a69CH7ErAVLKijxJja4fw+UQ==
+core-js@^2.4.0:
+  version "2.6.12"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.12.tgz#d9333dfa7b065e347cc5682219d6f690859cc2ec"
+  integrity sha512-Kb2wC0fvsWfQrgk8HU5lW6U/Lcs8+9aaYcy4ZFc6DDlo4nZ7n70dEgE5rtR0oG6ufKDUnrwfWL1mXR5ljDatrQ==
 
 core-util-is@1.0.2:
   version "1.0.2"