diff --git a/api/api.pb.go b/api/api.pb.go
index 5bac4e95..cd029960 100644
--- a/api/api.pb.go
+++ b/api/api.pb.go
@@ -281,7 +281,7 @@ func (m *DeleteClientResp) GetNotFound() bool {
 	return false
 }
 
-// UpdateClientReq is a request to update an exisitng client.
+// UpdateClientReq is a request to update an existing client.
 type UpdateClientReq struct {
 	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	RedirectUris         []string `protobuf:"bytes,2,rep,name=redirect_uris,json=redirectUris,proto3" json:"redirect_uris,omitempty"`
diff --git a/api/api.proto b/api/api.proto
index 5d9ce1a1..d0799c90 100644
--- a/api/api.proto
+++ b/api/api.proto
@@ -36,7 +36,7 @@ message DeleteClientResp {
   bool not_found = 1;
 }
 
-// UpdateClientReq is a request to update an exisitng client.
+// UpdateClientReq is a request to update an existing client.
 message UpdateClientReq {
     string id = 1;
     repeated string redirect_uris = 2;
diff --git a/api/v2/api.pb.go b/api/v2/api.pb.go
index 203407f9..bde9178e 100644
--- a/api/v2/api.pb.go
+++ b/api/v2/api.pb.go
@@ -281,7 +281,7 @@ func (m *DeleteClientResp) GetNotFound() bool {
 	return false
 }
 
-// UpdateClientReq is a request to update an exisitng client.
+// UpdateClientReq is a request to update an existing client.
 type UpdateClientReq struct {
 	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	RedirectUris         []string `protobuf:"bytes,2,rep,name=redirect_uris,json=redirectUris,proto3" json:"redirect_uris,omitempty"`
diff --git a/api/v2/api.proto b/api/v2/api.proto
index 5d9ce1a1..d0799c90 100644
--- a/api/v2/api.proto
+++ b/api/v2/api.proto
@@ -36,7 +36,7 @@ message DeleteClientResp {
   bool not_found = 1;
 }
 
-// UpdateClientReq is a request to update an exisitng client.
+// UpdateClientReq is a request to update an existing client.
 message UpdateClientReq {
     string id = 1;
     repeated string redirect_uris = 2;
diff --git a/server/api_test.go b/server/api_test.go
index 573e52b3..268bf3ee 100644
--- a/server/api_test.go
+++ b/server/api_test.go
@@ -226,7 +226,7 @@ func TestCheckCost(t *testing.T) {
 	}
 }
 
-// Attempts to list and revoke an exisiting refresh token.
+// Attempts to list and revoke an existing refresh token.
 func TestRefreshToken(t *testing.T) {
 	logger := &logrus.Logger{
 		Out:       os.Stderr,