diff --git a/.changeset/apollo-angular-2364-dependencies.md b/.changeset/apollo-angular-2364-dependencies.md
new file mode 100644
index 000000000..7436380a1
--- /dev/null
+++ b/.changeset/apollo-angular-2364-dependencies.md
@@ -0,0 +1,5 @@
+---
+"apollo-angular": patch
+---
+dependencies updates:
+  - Updated dependency [`graphql@^16.0.0` ↗︎](https://www.npmjs.com/package/graphql/v/16.0.0) (from `^15.0.0 || ^16.0.0`, in `peerDependencies`)
diff --git a/.changeset/shaggy-rabbits-compare.md b/.changeset/shaggy-rabbits-compare.md
new file mode 100644
index 000000000..be17d2621
--- /dev/null
+++ b/.changeset/shaggy-rabbits-compare.md
@@ -0,0 +1,5 @@
+---
+'apollo-angular': major
+---
+
+Drop support for GraphQL 15
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 79f5a6756..884972b6c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -113,7 +113,7 @@ jobs:
     strategy:
       matrix:
         angular_version: [18, 19, 20]
-        graphql_version: [15, 16]
+        graphql_version: [16]
         node_version: [18, 20, 22, 24]
         exclude:
           - angular_version: 18
diff --git a/packages/apollo-angular/package.json b/packages/apollo-angular/package.json
index 3acd144fd..d3432d683 100644
--- a/packages/apollo-angular/package.json
+++ b/packages/apollo-angular/package.json
@@ -38,7 +38,7 @@
   "peerDependencies": {
     "@angular/core": "^18.0.0 || ^19.0.0 || ^20.0.0",
     "@apollo/client": "^3.13.1",
-    "graphql": "^15.0.0 || ^16.0.0",
+    "graphql": "^16.0.0",
     "rxjs": "^6.0.0 || ^7.0.0"
   },
   "dependencies": {