diff --git a/Sources/AppAuthCore/OIDAuthState.h b/Sources/AppAuthCore/OIDAuthState.h
index 46c78a831..eafd82a97 100644
--- a/Sources/AppAuthCore/OIDAuthState.h
+++ b/Sources/AppAuthCore/OIDAuthState.h
@@ -248,6 +248,48 @@ static NSString *const kRefreshTokenRequestException =
     (nullable NSDictionary<NSString *, NSString *> *)additionalParameters
                        dispatchQueue:(dispatch_queue_t)dispatchQueue;
 
+/*! @brief Calls the block with a valid access token (refreshing it first, if needed), or if a
+        refresh was needed and failed, with the error that caused it to fail.
+    @param action The block to execute with a fresh token. This block will be executed on the main
+        thread.
+    @param additionalHeaders Additional parameters for the token request if token is
+      refreshed.
+ */
+- (void)performActionWithFreshTokens:(OIDAuthStateAction)action
+            additionalRefreshHeaders:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalHeaders;
+
+/*! @brief Calls the block with a valid access token (refreshing it first, if needed), or if a
+        refresh was needed and failed, with the error that caused it to fail.
+    @param action The block to execute with a fresh token. This block will be executed on the main
+        thread.
+    @param additionalHeaders Additional parameters for the token request if token is
+        refreshed.
+    @param dispatchQueue The dispatchQueue on which to dispatch the action block.
+ */
+- (void)performActionWithFreshTokens:(OIDAuthStateAction)action
+            additionalRefreshHeaders:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalHeaders
+                       dispatchQueue:(dispatch_queue_t)dispatchQueue;
+
+/*! @brief Calls the block with a valid access token (refreshing it first, if needed), or if a
+        refresh was needed and failed, with the error that caused it to fail.
+    @param action The block to execute with a fresh token. This block will be executed on the main
+        thread.
+    @param additionalParameters Additional parameters for the token request if token is
+        refreshed.
+    @param additionalHeaders Additional parameters for the token request if token is
+        refreshed.
+    @param dispatchQueue The dispatchQueue on which to dispatch the action block.
+ */
+- (void)performActionWithFreshTokens:(OIDAuthStateAction)action
+         additionalRefreshParameters:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalParameters
+            additionalRefreshHeaders:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalHeaders
+                       dispatchQueue:(dispatch_queue_t)dispatchQueue;
+
+
 /*! @brief Forces a token refresh the next time @c OIDAuthState.performActionWithFreshTokens: is
         called, even if the current tokens are considered valid.
  */
diff --git a/Sources/AppAuthCore/OIDAuthState.m b/Sources/AppAuthCore/OIDAuthState.m
index cb5a22a1e..53fac07b0 100644
--- a/Sources/AppAuthCore/OIDAuthState.m
+++ b/Sources/AppAuthCore/OIDAuthState.m
@@ -506,6 +506,36 @@ - (void)performActionWithFreshTokens:(OIDAuthStateAction)action
          additionalRefreshParameters:
     (nullable NSDictionary<NSString *, NSString *> *)additionalParameters
                        dispatchQueue:(dispatch_queue_t)dispatchQueue {
+  [self performActionWithFreshTokens:action
+         additionalRefreshParameters:additionalParameters
+            additionalRefreshHeaders:nil
+                       dispatchQueue:dispatch_get_main_queue()];
+}
+
+- (void)performActionWithFreshTokens:(OIDAuthStateAction)action
+            additionalRefreshHeaders:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalHeaders {
+  [self performActionWithFreshTokens:action
+            additionalRefreshHeaders:additionalHeaders
+                       dispatchQueue:dispatch_get_main_queue()];
+}
+
+- (void)performActionWithFreshTokens:(OIDAuthStateAction)action
+            additionalRefreshHeaders:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalHeaders
+                       dispatchQueue:(dispatch_queue_t)dispatchQueue {
+  [self performActionWithFreshTokens:action
+         additionalRefreshParameters:nil
+            additionalRefreshHeaders:additionalHeaders
+                       dispatchQueue:dispatch_get_main_queue()];
+}
+
+- (void)performActionWithFreshTokens:(OIDAuthStateAction)action
+         additionalRefreshParameters:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalParameters
+         additionalRefreshHeaders:
+    (nullable NSDictionary<NSString *, NSString *> *)additionalHeaders
+                       dispatchQueue:(dispatch_queue_t)dispatchQueue {
 
   if ([self isTokenFresh]) {
     // access token is valid within tolerance levels, perform action
@@ -544,7 +574,8 @@ - (void)performActionWithFreshTokens:(OIDAuthStateAction)action
 
   // refresh the tokens
   OIDTokenRequest *tokenRefreshRequest =
-      [self tokenRefreshRequestWithAdditionalParameters:additionalParameters];
+  [self tokenRefreshRequestWithAdditionalParameters:additionalParameters 
+                                  additionalHeaders:additionalHeaders];
   [OIDAuthorizationService performTokenRequest:tokenRefreshRequest
                  originalAuthorizationResponse:_lastAuthorizationResponse
                                       callback:^(OIDTokenResponse *_Nullable response,