diff --git a/pkg/apiclient/repocreds/repocreds.pb.go b/pkg/apiclient/repocreds/repocreds.pb.go
index 74d47ea1699ae..c872097d52ed0 100644
--- a/pkg/apiclient/repocreds/repocreds.pb.go
+++ b/pkg/apiclient/repocreds/repocreds.pb.go
@@ -13,6 +13,7 @@ import (
 	v1alpha1 "github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
 	_ "github.com/gogo/protobuf/gogoproto"
 	proto "github.com/gogo/protobuf/proto"
+	types "github.com/gogo/protobuf/types"
 	_ "google.golang.org/genproto/googleapis/api/annotations"
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
@@ -231,6 +232,7 @@ func (m *RepoCredsCreateRequest) GetUpsert() bool {
 // RepoCredsUpdateRequest is a request for updating existing repository credentials config
 type RepoCredsUpdateRequest struct {
 	Creds                *v1alpha1.RepoCreds `protobuf:"bytes,1,opt,name=creds,proto3" json:"creds,omitempty"`
+	UpdateMask           *types.FieldMask    `protobuf:"bytes,3001,opt,name=updateMask,proto3" json:"updateMask,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}            `json:"-"`
 	XXX_unrecognized     []byte              `json:"-"`
 	XXX_sizecache        int32               `json:"-"`
@@ -276,6 +278,13 @@ func (m *RepoCredsUpdateRequest) GetCreds() *v1alpha1.RepoCreds {
 	return nil
 }
 
+func (m *RepoCredsUpdateRequest) GetUpdateMask() *types.FieldMask {
+	if m != nil {
+		return m.UpdateMask
+	}
+	return nil
+}
+
 func init() {
 	proto.RegisterType((*RepoCredsQuery)(nil), "repocreds.RepoCredsQuery")
 	proto.RegisterType((*RepoCredsDeleteRequest)(nil), "repocreds.RepoCredsDeleteRequest")
@@ -287,39 +296,42 @@ func init() {
 func init() { proto.RegisterFile("server/repocreds/repocreds.proto", fileDescriptor_b0b5fce4710a8821) }
 
 var fileDescriptor_b0b5fce4710a8821 = []byte{
-	// 503 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x94, 0xc1, 0x6a, 0x14, 0x31,
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-	0x80, 0x2e, 0x41, 0x33, 0x0d, 0x4a, 0xc6, 0x1a, 0x12, 0xd3, 0x44, 0x54, 0x69, 0x69, 0x65, 0xb0,
-	0x5d, 0x2f, 0x84, 0xd7, 0x52, 0x99, 0x4a, 0xbf, 0xca, 0x5c, 0x34, 0x15, 0x84, 0x87, 0xa9, 0x94,
-	0x69, 0x06, 0x8c, 0x2b, 0xc1, 0x78, 0x9e, 0x4b, 0xcb, 0xad, 0x90, 0xf9, 0xec, 0xf7, 0x90, 0x8c,
-	0x1e, 0x18, 0x2a, 0xa4, 0xdf, 0x8d, 0xa5, 0x06, 0x56, 0x0e, 0x58, 0x0a, 0x39, 0x68, 0x6e, 0x21,
-	0x99, 0x69, 0xce, 0x52, 0x61, 0x2f, 0x8a, 0x73, 0x1a, 0xcb, 0x37, 0x8c, 0x6b, 0x7f, 0xc4, 0x6b,
-	0x1f, 0xdc, 0x8d, 0x13, 0x56, 0x0e, 0x99, 0x1a, 0xa5, 0xee, 0x7f, 0xc3, 0xb8, 0x52, 0x99, 0x88,
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-	0x44, 0x03, 0x6f, 0x1c, 0x5e, 0xe2, 0x4d, 0x7f, 0x5d, 0xde, 0xe3, 0xca, 0xf0, 0x31, 0x6d, 0xb2,
-	0xa3, 0x55, 0x76, 0x3e, 0x78, 0x15, 0x27, 0xb4, 0x1c, 0x52, 0x35, 0x4a, 0xa9, 0xcb, 0x8e, 0xce,
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-	0xa0, 0xe1, 0xd7, 0x4d, 0xbc, 0x53, 0x2f, 0x3e, 0x03, 0x5d, 0x8a, 0x18, 0x82, 0x6f, 0x08, 0x77,
-	0xce, 0x84, 0xb1, 0x6e, 0xc3, 0x08, 0x2b, 0xf5, 0xd8, 0x6d, 0x43, 0x6e, 0x05, 0xcf, 0x4c, 0xd0,
-	0xa1, 0x4d, 0x97, 0x2d, 0xd6, 0x2a, 0x7c, 0xb2, 0x26, 0x3a, 0x77, 0x38, 0xe9, 0x7c, 0xfa, 0xfd,
-	0xf7, 0xcb, 0xc6, 0x5e, 0xb0, 0xeb, 0xdb, 0xaf, 0x1c, 0x34, 0xcd, 0x1d, 0x7c, 0x47, 0xb8, 0x5b,
-	0xd5, 0xad, 0x0d, 0xf1, 0x56, 0x1b, 0xe2, 0x42, 0xa1, 0xc3, 0x75, 0x5d, 0x24, 0xe9, 0x7b, 0xcc,
-	0x90, 0x2c, 0x63, 0x3e, 0x9c, 0x15, 0xfd, 0x07, 0xc2, 0xdd, 0xaa, 0xa8, 0x2b, 0xd3, 0x2e, 0x74,
-	0xc1, 0xfa, 0x68, 0xef, 0x78, 0xda, 0xdb, 0xe1, 0x8d, 0x25, 0x5a, 0xf6, 0x7e, 0x4a, 0x50, 0xe8,
-	0xec, 0x43, 0x45, 0xfe, 0x11, 0x77, 0xab, 0x01, 0x5b, 0x19, 0x7c, 0x61, 0x22, 0xc3, 0xc3, 0x36,
-	0x49, 0x3d, 0x88, 0x37, 0x3d, 0x4d, 0xe7, 0xf8, 0x7a, 0x0b, 0x8d, 0xe3, 0x78, 0x74, 0xfa, 0x73,
-	0xd2, 0x43, 0xbf, 0x26, 0x3d, 0xf4, 0x67, 0xd2, 0x43, 0x2f, 0xee, 0xaf, 0xf6, 0xd4, 0xc4, 0x99,
-	0x80, 0xdc, 0x36, 0x5e, 0xe7, 0x5b, 0xfe, 0x6d, 0xb9, 0xf7, 0x2f, 0x00, 0x00, 0xff, 0xff, 0x83,
-	0xa0, 0x52, 0xd7, 0x30, 0x05, 0x00, 0x00,
+	// 551 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xbc, 0x94, 0x41, 0x6b, 0x13, 0x41,
+	0x14, 0xc7, 0x99, 0x4a, 0x8b, 0x1d, 0x41, 0xda, 0xad, 0xb4, 0xc9, 0xa6, 0xc6, 0xb8, 0x07, 0x29,
+	0x45, 0x67, 0x48, 0x04, 0x11, 0xbd, 0xd9, 0xa2, 0x07, 0xeb, 0xc1, 0x15, 0x2f, 0x82, 0x94, 0xc9,
+	0xee, 0xeb, 0x76, 0xcc, 0x76, 0x67, 0x9c, 0x99, 0x5d, 0x28, 0x22, 0x82, 0x5f, 0xc0, 0x83, 0x57,
+	0xf1, 0x0b, 0x78, 0x15, 0xc4, 0x6f, 0xe0, 0x51, 0xf0, 0x0b, 0x48, 0xf0, 0x83, 0xc8, 0x4c, 0x76,
+	0xb3, 0x09, 0xc9, 0x21, 0x87, 0xd0, 0xdb, 0xdb, 0x99, 0xff, 0xbc, 0xf7, 0x7b, 0x79, 0xff, 0x17,
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+	0xe1, 0xad, 0x8f, 0x0f, 0xfc, 0x6b, 0x89, 0x48, 0x84, 0x3b, 0xa5, 0x36, 0x1a, 0x09, 0xfc, 0xdd,
+	0x44, 0x88, 0x24, 0x05, 0xca, 0x24, 0xa7, 0x2c, 0xcb, 0x84, 0x61, 0x86, 0x8b, 0xac, 0x7c, 0xee,
+	0x77, 0xca, 0x5b, 0xf7, 0xd5, 0xcf, 0x4f, 0xe8, 0x09, 0x87, 0x34, 0x3e, 0x3e, 0x63, 0x7a, 0x50,
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+	0xf7, 0x84, 0xd4, 0xdd, 0x91, 0xaa, 0x3b, 0x17, 0x1c, 0x47, 0x31, 0x29, 0x7a, 0x44, 0x0e, 0x12,
+	0x62, 0xbb, 0x23, 0x13, 0xdd, 0x91, 0xaa, 0x3b, 0x52, 0x97, 0x1e, 0x65, 0xf5, 0xb6, 0xf1, 0x5a,
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+	0x8a, 0xf8, 0x64, 0x64, 0x0d, 0x52, 0x59, 0x83, 0x3c, 0xb6, 0xd6, 0xb0, 0x92, 0x70, 0x42, 0xde,
+	0xfb, 0xb2, 0x8a, 0x37, 0xc6, 0x19, 0x5f, 0x80, 0x2a, 0x78, 0x04, 0xde, 0x57, 0x84, 0x9b, 0x47,
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+	0xb5, 0x8b, 0xa7, 0x27, 0xed, 0x3f, 0x5d, 0x52, 0x6b, 0xb6, 0x78, 0xd0, 0xfc, 0xf8, 0xe7, 0xdf,
+	0xe7, 0x95, 0x2d, 0x6f, 0xd3, 0x99, 0xb7, 0xe8, 0xd6, 0xcb, 0xe3, 0x7d, 0x43, 0xb8, 0x55, 0x4d,
+	0x7d, 0x1e, 0xe2, 0xcd, 0x79, 0x88, 0x53, 0x36, 0xf1, 0x97, 0x35, 0x85, 0xa0, 0xe3, 0x30, 0xfd,
+	0x60, 0x16, 0xf3, 0x41, 0x39, 0xa0, 0x1f, 0x08, 0xb7, 0x2a, 0x47, 0x2c, 0x4c, 0x3b, 0x65, 0xa1,
+	0xe5, 0xd1, 0xde, 0x76, 0xb4, 0xb7, 0xfc, 0xeb, 0x33, 0xb4, 0xf4, 0xdd, 0x88, 0x20, 0x57, 0xe9,
+	0xfb, 0x8a, 0xfc, 0x03, 0x6e, 0x55, 0xeb, 0xb9, 0x30, 0xf8, 0xd4, 0x3e, 0xfb, 0xbb, 0xf3, 0x24,
+	0xe3, 0x35, 0xbe, 0xe1, 0x68, 0x9a, 0xfb, 0x3b, 0x73, 0x68, 0x2c, 0xc7, 0xa3, 0xc3, 0x5f, 0xc3,
+	0x36, 0xfa, 0x3d, 0x6c, 0xa3, 0xbf, 0xc3, 0x36, 0x7a, 0x75, 0x6f, 0xb1, 0x3f, 0xaa, 0x28, 0xe5,
+	0x90, 0x99, 0x3a, 0x57, 0x7f, 0xcd, 0x2d, 0xc1, 0xdd, 0xff, 0x01, 0x00, 0x00, 0xff, 0xff, 0x7b,
+	0xf1, 0xda, 0x9a, 0x90, 0x05, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -686,6 +698,22 @@ func (m *RepoCredsUpdateRequest) MarshalToSizedBuffer(dAtA []byte) (int, error)
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if m.UpdateMask != nil {
+		{
+			size, err := m.UpdateMask.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintRepocreds(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xbb
+		i--
+		dAtA[i] = 0xca
+	}
 	if m.Creds != nil {
 		{
 			size, err := m.Creds.MarshalToSizedBuffer(dAtA[:i])
@@ -785,6 +813,10 @@ func (m *RepoCredsUpdateRequest) Size() (n int) {
 		l = m.Creds.Size()
 		n += 1 + l + sovRepocreds(uint64(l))
 	}
+	if m.UpdateMask != nil {
+		l = m.UpdateMask.Size()
+		n += 3 + l + sovRepocreds(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -1186,6 +1218,42 @@ func (m *RepoCredsUpdateRequest) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 3001:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field UpdateMask", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowRepocreds
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthRepocreds
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthRepocreds
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.UpdateMask == nil {
+				m.UpdateMask = &types.FieldMask{}
+			}
+			if err := m.UpdateMask.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipRepocreds(dAtA[iNdEx:])
diff --git a/pkg/apiclient/repocreds/repocreds.pb.gw.go b/pkg/apiclient/repocreds/repocreds.pb.gw.go
index cbf003fbfaa54..f5a4e50cc529a 100644
--- a/pkg/apiclient/repocreds/repocreds.pb.gw.go
+++ b/pkg/apiclient/repocreds/repocreds.pb.gw.go
@@ -121,6 +121,10 @@ func local_request_RepoCredsService_CreateRepositoryCredentials_0(ctx context.Co
 
 }
 
+var (
+	filter_RepoCredsService_UpdateRepositoryCredentials_0 = &utilities.DoubleArray{Encoding: map[string]int{"creds": 0, "url": 1}, Base: []int{1, 2, 1, 0, 0}, Check: []int{0, 1, 2, 3, 2}}
+)
+
 func request_RepoCredsService_UpdateRepositoryCredentials_0(ctx context.Context, marshaler runtime.Marshaler, client RepoCredsServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
 	var protoReq RepoCredsUpdateRequest
 	var metadata runtime.ServerMetadata
@@ -151,6 +155,13 @@ func request_RepoCredsService_UpdateRepositoryCredentials_0(ctx context.Context,
 		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "creds.url", err)
 	}
 
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_RepoCredsService_UpdateRepositoryCredentials_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
 	msg, err := client.UpdateRepositoryCredentials(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
 	return msg, metadata, err
 
@@ -186,6 +197,13 @@ func local_request_RepoCredsService_UpdateRepositoryCredentials_0(ctx context.Co
 		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "creds.url", err)
 	}
 
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_RepoCredsService_UpdateRepositoryCredentials_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
 	msg, err := server.UpdateRepositoryCredentials(ctx, &protoReq)
 	return msg, metadata, err
 
diff --git a/server/repocreds/repocreds.go b/server/repocreds/repocreds.go
index 4474ce91b1655..a84537764a95d 100644
--- a/server/repocreds/repocreds.go
+++ b/server/repocreds/repocreds.go
@@ -1,6 +1,9 @@
 package repocreds
 
 import (
+	"github.com/argoproj/argo-cd/v2/util/grpc"
+	protov1 "github.com/golang/protobuf/proto"
+	"github.com/mennanov/fmutils"
 	"reflect"
 
 	"github.com/argoproj/argo-cd/v2/util/argo"
@@ -117,6 +120,17 @@ func (s *Server) UpdateRepositoryCredentials(ctx context.Context, q *repocredspk
 	if err := s.enf.EnforceErr(ctx.Value("claims"), rbacpolicy.ResourceRepositories, rbacpolicy.ActionUpdate, q.Creds.URL); err != nil {
 		return nil, err
 	}
+
+	if q.UpdateMask != nil && len(q.UpdateMask.Paths) != 0 {
+		existing, err := s.db.GetRepositoryCredentials(ctx, q.Creds.URL)
+		if err != nil {
+			return nil, err
+		}
+
+		grpc.Mask(protov1.MessageV2(existing), protov1.MessageV2(q.Creds), fmutils.NestedMaskFromPaths(q.UpdateMask.Paths))
+		q.Creds = existing
+	}
+
 	_, err := s.db.UpdateRepositoryCredentials(ctx, q.Creds)
 	return q.Creds, err
 }
diff --git a/server/repocreds/repocreds.proto b/server/repocreds/repocreds.proto
index 8161e5eb8e1c5..800079aceb432 100644
--- a/server/repocreds/repocreds.proto
+++ b/server/repocreds/repocreds.proto
@@ -8,6 +8,7 @@ package repocreds;
 
 import "gogoproto/gogo.proto";
 import "google/api/annotations.proto";
+import "google/protobuf/field_mask.proto";
 import "k8s.io/api/core/v1/generated.proto";
 import "github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1/generated.proto";
 
@@ -35,6 +36,7 @@ message RepoCredsCreateRequest {
 // RepoCredsUpdateRequest is a request for updating existing repository credentials config
 message RepoCredsUpdateRequest {
 	github.com.argoproj.argo_cd.v2.pkg.apis.application.v1alpha1.RepoCreds creds = 1;
+	google.protobuf.FieldMask updateMask = 3001;
 }
 
 // RepoCredsService implements CRUD actions for managing repository credentials config