diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96148915319..7f619e72684 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ The version headers in this history reflect the versions of Apollo Server itself
 > The changes noted within this `vNEXT` section have not been released yet.  New PRs and commits which introduce changes should include an entry in this `vNEXT` section as part of their development.  With few exceptions, the format of the entry should follow convention (i.e., prefix with package name, use markdown `backtick formatting` for package names and code, suffix with a link to the change-set à la `[PR #YYY](https://link/pull/YYY)`, etc.).  When a release is being prepared, a new header will be (manually) created below and the appropriate changes within that release will be moved into the new section.
 
 - `apollo-server-express`: types: Export `ExpressContext` from main module. [PR #4821](https://github.com/apollographql/apollo-server/pull/4821) [Issue #3699](https://github.com/apollographql/apollo-server/issues/3699)
+- `apollo-server-core`: Update `graphql-tag` package to `latest`, now with its `graphql-js` `peerDependencies` expanded to include `^15.0.0` [PR #4833](https://github.com/apollographql/apollo-server/pull/4833)
 
 ## v2.19.1
 
diff --git a/examples/acephei/gateway/package.json b/examples/acephei/gateway/package.json
index 7f004d219d6..0eb2e68e10d 100644
--- a/examples/acephei/gateway/package.json
+++ b/examples/acephei/gateway/package.json
@@ -10,11 +10,12 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "peerDependencies": {
-    "@apollo/gateway": "*",
     "apollo-server": "*",
     "apollo-server-plugin-operation-registry": "*"
   },
-  "dependencies": {},
+  "dependencies": {
+    "@apollo/gateway": "^0.21.4"
+  },
   "engines": {
     "node": "12.x"
   },
diff --git a/examples/acephei/services/accounts/package.json b/examples/acephei/services/accounts/package.json
index 449968700f8..376579f5801 100644
--- a/examples/acephei/services/accounts/package.json
+++ b/examples/acephei/services/accounts/package.json
@@ -7,11 +7,11 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "peerDependencies": {
-    "@apollo/federation": "*",
     "apollo-datasource": "*",
     "apollo-server": "*"
   },
   "dependencies": {
+    "@apollo/federation": "^0.20.7",
     "dataloader": "^1.4.0"
   },
   "engines": {
diff --git a/examples/acephei/services/books/package.json b/examples/acephei/services/books/package.json
index c8a45bea917..4c2c07311b4 100644
--- a/examples/acephei/services/books/package.json
+++ b/examples/acephei/services/books/package.json
@@ -7,11 +7,11 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "peerDependencies": {
-    "@apollo/federation": "*",
     "apollo-datasource": "*",
     "apollo-server": "*"
   },
   "dependencies": {
+    "@apollo/federation": "^0.20.7",
     "dataloader": "^1.4.0"
   },
   "engines": {
diff --git a/examples/acephei/services/products/package.json b/examples/acephei/services/products/package.json
index c84594f38ae..ec867368209 100644
--- a/examples/acephei/services/products/package.json
+++ b/examples/acephei/services/products/package.json
@@ -7,11 +7,11 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "peerDependencies": {
-    "@apollo/federation": "*",
     "apollo-datasource": "*",
     "apollo-server": "*"
   },
   "dependencies": {
+    "@apollo/federation": "^0.20.7",
     "dataloader": "^1.4.0"
   },
   "engines": {
diff --git a/examples/acephei/services/reviews/package.json b/examples/acephei/services/reviews/package.json
index ef5cd0629d6..e37e8ebb993 100644
--- a/examples/acephei/services/reviews/package.json
+++ b/examples/acephei/services/reviews/package.json
@@ -7,11 +7,11 @@
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "peerDependencies": {
-    "@apollo/federation": "*",
     "apollo-datasource": "*",
     "apollo-server": "*"
   },
   "dependencies": {
+    "@apollo/federation": "^0.20.7",
     "dataloader": "^1.4.0"
   },
   "engines": {
diff --git a/package-lock.json b/package-lock.json
index 50753350e37..e6b87e88f5e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3,597 +3,6 @@
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   "lockfileVersion": 1,
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-      "dev": true,
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-      },
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-          "resolved": "https://registry.npmjs.org/apollo-server-env/-/apollo-server-env-2.4.5.tgz",
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-          "dev": true,
-          "requires": {
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-            "util.promisify": "^1.0.0"
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-          "dev": true
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-      }
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-    "@apollo/gateway": {
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diff --git a/package.json b/package.json
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