diff --git a/devel/py-grpcio-tools/Makefile b/devel/py-grpcio-tools/Makefile
index 73223a7b7930..819463e1188b 100644
--- a/devel/py-grpcio-tools/Makefile
+++ b/devel/py-grpcio-tools/Makefile
@@ -1,24 +1,24 @@
 PORTNAME=	grpcio-tools
-PORTVERSION=	1.54.0
+PORTVERSION=	1.55.0
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	vanilla@FreeBSD.org
 COMMENT=	Protobuf code generator for gRPC
 WWW=		https://pypi.org/project/grpcio-tools/
 
 LICENSE=	BSD3CLAUSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}grpcio>1:devel/py-grpcio@${PY_FLAVOR}
 LIB_DEPENDS=	libcares.so:dns/c-ares
 
 USES=		compiler:c++11-lang localbase:ldflags python
 USE_PYTHON=	autoplist distutils
 CFLAGS+=	-DHAVE_PTHREAD=1
 LDFLAGS+=	-lcares
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/grpc_tools/_protoc_compiler*.so
 
 .include <bsd.port.mk>
diff --git a/devel/py-grpcio-tools/distinfo b/devel/py-grpcio-tools/distinfo
index c1d9ef7f7552..411f54372d8d 100644
--- a/devel/py-grpcio-tools/distinfo
+++ b/devel/py-grpcio-tools/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1682078891
-SHA256 (grpcio-tools-1.54.0.tar.gz) = df79acbf59997018e131713b716a2fddb5556e1840e9fb9de4ca73bf2059590e
-SIZE (grpcio-tools-1.54.0.tar.gz) = 2259685
+TIMESTAMP = 1685069344
+SHA256 (grpcio-tools-1.55.0.tar.gz) = d796f5d7cea260ef2afed12d13ec34b13e09dd74d7f292d7428c506fa8c17a74
+SIZE (grpcio-tools-1.55.0.tar.gz) = 4481863
diff --git a/devel/py-grpcio-tools/files/patch-third__party_protobuf_src_google_protobuf_arena__impl.h b/devel/py-grpcio-tools/files/patch-third__party_protobuf_src_google_protobuf_arena__impl.h
deleted file mode 100644
index f96fda395196..000000000000
--- a/devel/py-grpcio-tools/files/patch-third__party_protobuf_src_google_protobuf_arena__impl.h
+++ /dev/null
@@ -1,11 +0,0 @@
---- third_party/protobuf/src/google/protobuf/arena_impl.h.orig	2022-09-25 04:12:11 UTC
-+++ third_party/protobuf/src/google/protobuf/arena_impl.h
-@@ -640,7 +640,7 @@ class PROTOBUF_EXPORT ThreadSafeArena {
- #ifdef _MSC_VER
- #pragma warning(disable : 4324)
- #endif
--  struct alignas(kCacheAlignment) CacheAlignedLifecycleIdGenerator {
-+  struct alignas(alignof(std::atomic<LifecycleIdAtomic>)) CacheAlignedLifecycleIdGenerator {
-     std::atomic<LifecycleIdAtomic> id;
-   };
-   static CacheAlignedLifecycleIdGenerator lifecycle_id_generator_;