diff --git a/devel/py-grpcio-tools/Makefile b/devel/py-grpcio-tools/Makefile
index 9943cd2a34ba..18bbfc8de475 100644
--- a/devel/py-grpcio-tools/Makefile
+++ b/devel/py-grpcio-tools/Makefile
@@ -1,25 +1,25 @@
 PORTNAME=	grpcio-tools
-DISTVERSION=	1.81.1
+DISTVERSION=	1.82.1
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTNAME=	grpcio_tools-${PORTVERSION}
 
 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
+USES=		compiler:c++17-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 388872a3f574..2fd31095410b 100644
--- a/devel/py-grpcio-tools/distinfo
+++ b/devel/py-grpcio-tools/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1783064514
-SHA256 (grpcio_tools-1.81.1.tar.gz) = a22a3870180927fdd84e2b27d079ef5b7f5f8c6110181b6736afc17a463481f1
-SIZE (grpcio_tools-1.81.1.tar.gz) = 6236155
+TIMESTAMP = 1783643196
+SHA256 (grpcio_tools-1.82.1.tar.gz) = 2bd3176ccdbf7cd1f463eb75b7b83544c7d6429f5ca8a0f7f784b76097dac891
+SIZE (grpcio_tools-1.82.1.tar.gz) = 6399590
diff --git a/devel/py-grpcio-tools/files/patch-setup.py b/devel/py-grpcio-tools/files/patch-setup.py
index 4beb5f92a035..b4275f6e62ec 100644
--- a/devel/py-grpcio-tools/files/patch-setup.py
+++ b/devel/py-grpcio-tools/files/patch-setup.py
@@ -1,29 +1,29 @@
---- setup.py.orig	2026-02-03 18:17:37 UTC
+--- setup.py.orig	2026-07-08 09:16:27 UTC
 +++ setup.py
-@@ -193,7 +193,7 @@ if EXTRA_ENV_COMPILE_ARGS is None:
+@@ -196,7 +196,7 @@ if EXTRA_ENV_COMPILE_ARGS is None:
          # Reduce the optimization level from O3 (in many cases) to O1 to
          # workaround gcc misalignment bug with MOVAPS (internal b/329134877)
          EXTRA_ENV_COMPILE_ARGS += " -O1"
 -    elif "darwin" in sys.platform:
 +    elif "darwin" in sys.platform or "freebsd" in sys.platform:
          # AppleClang by defaults uses C17 so only C++17 needs to be specified.
          EXTRA_ENV_COMPILE_ARGS += " -std=c++17"
          EXTRA_ENV_COMPILE_ARGS += " -fno-wrapv -frtti"
-@@ -226,7 +226,7 @@ if EXTRA_ENV_LINK_ARGS is None:
+@@ -229,7 +229,7 @@ if EXTRA_ENV_LINK_ARGS is None:
          EXTRA_ENV_LINK_ARGS += " -Wl,-exported_symbol,_{}".format(
              _EXT_INIT_SYMBOL
          )
 -    if "linux" in sys.platform or "darwin" in sys.platform:
 +    if "linux" in sys.platform or "darwin" in sys.platform or "freebsd" in sys.platform:
          EXTRA_ENV_LINK_ARGS += " -lpthread"
          if check_linker_need_libatomic():
              EXTRA_ENV_LINK_ARGS += " -latomic"
-@@ -265,7 +265,7 @@ if "win32" in sys.platform:
+@@ -269,7 +269,7 @@ if "win32" in sys.platform:
      )
      if "64bit" in platform.architecture()[0]:
          DEFINE_MACROS += (("MS_WIN64", 1),)
 -elif "linux" in sys.platform or "darwin" in sys.platform:
 +elif "linux" in sys.platform or "darwin" in sys.platform or "freebsd" in sys.platform:
      DEFINE_MACROS += (("HAVE_PTHREAD", 1),)
  
  
diff --git a/devel/py-grpcio-tools/files/patch-third__party_protobuf_src_google_protobuf_io_zero__copy__stream__impl.cc b/devel/py-grpcio-tools/files/patch-third__party_protobuf_src_google_protobuf_io_zero__copy__stream__impl.cc
new file mode 100644
index 000000000000..3db8ed038a5b
--- /dev/null
+++ b/devel/py-grpcio-tools/files/patch-third__party_protobuf_src_google_protobuf_io_zero__copy__stream__impl.cc
@@ -0,0 +1,13 @@
+--- third_party/protobuf/src/google/protobuf/io/zero_copy_stream_impl.cc.orig	2026-07-08 09:29:26 UTC
++++ third_party/protobuf/src/google/protobuf/io/zero_copy_stream_impl.cc
+@@ -20,6 +20,10 @@
+ #endif
+ #include <errno.h>
+ 
++#ifndef isascii
++#define isascii(c) (((c) & ~0x7f) == 0)
++#endif
++
+ #include <algorithm>
+ #include <istream>
+ #include <ostream>