diff --git a/gvsbuild/patches/protobuf-c/0001-CMakeList.txt-Remove-double-dashes.patch b/gvsbuild/patches/protobuf-c/0001-CMakeList.txt-Remove-double-dashes.patch
new file mode 100644
index 000000000..5bc475ef8
--- /dev/null
+++ b/gvsbuild/patches/protobuf-c/0001-CMakeList.txt-Remove-double-dashes.patch
@@ -0,0 +1,65 @@
+From fbef2d9fbe3e93aebb286bf1366baa2ddc10a4b5 Mon Sep 17 00:00:00 2001
+From: Alessandro Bono <alessandro.bono369@gmail.com>
+Date: Fri, 15 Dec 2023 19:04:16 +0100
+Subject: [PATCH] CMakeList.txt: Remove double dashes
+
+Otherwise cmake won't reconize the command.
+
+With double dashes:
+```
+$ cmake -E env TESTENV=value -- env | grep TESTENV
+cmake -E env: unknown option '--'
+```
+
+Without double dashes:
+```
+$ cmake -E env TESTENV=value env | grep TESTENV
+TESTENV=value
+```
+---
+ build-cmake/CMakeLists.txt | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/build-cmake/CMakeLists.txt b/build-cmake/CMakeLists.txt
+index f46fba7..c7db9f2 100644
+--- a/build-cmake/CMakeLists.txt
++++ b/build-cmake/CMakeLists.txt
+@@ -147,7 +147,7 @@ SET(CMAKE_CXX_STANDARD_REQUIRED ON)
+ SET(CMAKE_CXX_EXTENSIONS OFF)
+ 
+ add_custom_target(protoc-generated-files
+-       COMMAND ${CMAKE_COMMAND} -E env PATH="${OS_PATH_VARIABLE}" -- ${PROTOBUF_PROTOC_EXECUTABLE}
++       COMMAND ${CMAKE_COMMAND} -E env PATH="${OS_PATH_VARIABLE}" ${PROTOBUF_PROTOC_EXECUTABLE}
+             --cpp_out ${CMAKE_CURRENT_BINARY_DIR} -I${PROTOBUF_INCLUDE_DIR}
+             -I${MAIN_DIR} ${MAIN_DIR}/protobuf-c/protobuf-c.proto
+        COMMENT Running protoc on ${MAIN_DIR}/protobuf-c/protobuf-c.proto
+@@ -186,7 +186,7 @@ ENDIF (MSVC AND BUILD_SHARED_LIBS)
+ FUNCTION(GENERATE_TEST_SOURCES PROTO_FILE SRC HDR)
+     ADD_CUSTOM_COMMAND(OUTPUT ${SRC} ${HDR}
+        COMMAND ${CMAKE_COMMAND}
+-       ARGS -E env PATH="${OS_PATH_VARIABLE}" -- ${PROTOBUF_PROTOC_EXECUTABLE}
++       ARGS -E env PATH="${OS_PATH_VARIABLE}" ${PROTOBUF_PROTOC_EXECUTABLE}
+             --plugin=$<TARGET_FILE_NAME:protoc-gen-c> -I${MAIN_DIR} ${PROTO_FILE} --c_out=${CMAKE_CURRENT_BINARY_DIR}
+        DEPENDS protoc-gen-c)
+ ENDFUNCTION()
+@@ -201,7 +201,7 @@ TARGET_LINK_LIBRARIES(test-generated-code protobuf-c)
+ 
+ ADD_CUSTOM_COMMAND(OUTPUT t/test-full.pb.cc t/test-full.pb.h
+        COMMAND ${CMAKE_COMMAND}
+-       ARGS -E env PATH="${OS_PATH_VARIABLE}" -- ${PROTOBUF_PROTOC_EXECUTABLE}
++       ARGS -E env PATH="${OS_PATH_VARIABLE}" ${PROTOBUF_PROTOC_EXECUTABLE}
+             --cpp_out ${CMAKE_CURRENT_BINARY_DIR} -I${MAIN_DIR} ${TEST_DIR}/test-full.proto
+ )
+ 
+@@ -220,7 +220,7 @@ ENDIF (MSVC AND BUILD_SHARED_LIBS)
+ FILE(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/t/generated-code2)
+ ADD_CUSTOM_COMMAND(OUTPUT t/generated-code2/test-full-cxx-output.inc
+        COMMAND ${CMAKE_COMMAND}
+-       ARGS -E env PATH="${OS_PATH_VARIABLE}" -- cxx-generate-packed-data
++       ARGS -E env PATH="${OS_PATH_VARIABLE}" cxx-generate-packed-data
+             ">t/generated-code2/test-full-cxx-output.inc"
+             DEPENDS cxx-generate-packed-data
+ )
+-- 
+2.34.1
+
diff --git a/gvsbuild/patches/protobuf-c/build-cmake/Config.cmake.in b/gvsbuild/patches/protobuf-c/build-cmake/Config.cmake.in
new file mode 100644
index 000000000..fa24a5877
--- /dev/null
+++ b/gvsbuild/patches/protobuf-c/build-cmake/Config.cmake.in
@@ -0,0 +1,2 @@
+@PACKAGE_INIT@
+include("${CMAKE_CURRENT_LIST_DIR}/protobuf-c-targets.cmake")
diff --git a/gvsbuild/projects/protobuf.py b/gvsbuild/projects/protobuf.py
index d1e84a741..fc24ba267 100644
--- a/gvsbuild/projects/protobuf.py
+++ b/gvsbuild/projects/protobuf.py
@@ -52,14 +52,18 @@ def __init__(self):
         Project.__init__(
             self,
             "protobuf-c",
-            version="1.4.1",
+            version="1.5.0",
             archive_url="https://github.com/protobuf-c/protobuf-c/releases/download/v{version}/protobuf-c-{version}.tar.gz",
-            hash="4cc4facd508172f3e0a4d3a8736225d472418aee35b4ad053384b137b220339f",
+            hash="7b404c63361ed35b3667aec75cc37b54298d56dd2bcf369de3373212cc06fd98",
             dependencies=[
+                "abseil-cpp",
                 "cmake",
                 "protobuf",
                 "ninja",
             ],
+            patches=[
+                "0001-CMakeList.txt-Remove-double-dashes.patch",
+            ],
         )
 
     def build(self):