diff --git a/.changeset/old-chefs-repeat.md b/.changeset/old-chefs-repeat.md
new file mode 100644
index 000000000..7ad85a8f4
--- /dev/null
+++ b/.changeset/old-chefs-repeat.md
@@ -0,0 +1,5 @@
+---
+"@emotion/react": patch
+---
+
+Export `Keyframes` type to avoid TypeScript inserting `import("@emotion/serialize").Keyframes` references into declaration files emitted based on a source files exporting `keyframes` result. This avoids issues with strict package managers that don't allow accessing undeclared dependencies.
diff --git a/packages/react/types/index.d.ts b/packages/react/types/index.d.ts
index 0f3575333..07f8468be 100644
--- a/packages/react/types/index.d.ts
+++ b/packages/react/types/index.d.ts
@@ -31,6 +31,7 @@ export {
   EmotionCache,
   FunctionInterpolation,
   Interpolation,
+  Keyframes,
   SerializedStyles
 }