diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ffaca1ca..529db751 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,10 +17,16 @@ jobs:
         # Test all supported releases.
         # See https://www.netbsd.org/releases/.
         include:
-          - release: 9.4
-            capnproto-cppflags: 'CPPFLAGS="-DKJ_NO_EXCEPTIONS=0 -DKJ_USE_KQUEUE=0"'
-          - release: 10.1
+          # Due to a bug in Cap'n Proto, GCC compilers older
+          # than 14.x require `-DKJ_NO_EXCEPTIONS=0` when
+          # processing `capnproto/c++/src/kj/common.h`.
+          # See https://github.com/capnproto/capnproto/pull/2756/changes/28fa1a6753514d8de56875ec2222fa0e1c3a04f7.
+          - release: '10.1'
             capnproto-cppflags: 'CPPFLAGS="-DKJ_NO_EXCEPTIONS=0"'
+            env_vars: 'CXXFLAGS="-DKJ_NO_EXCEPTIONS=0"'
+          - release: '11.0'
+            capnproto-cppflags: 'CPPFLAGS="-DKJ_NO_EXCEPTIONS=0"'
+            env_vars: 'CXXFLAGS="-DKJ_NO_EXCEPTIONS=0"'
     steps:
       - uses: actions/checkout@v6
 
@@ -63,7 +69,7 @@ jobs:
       - name: Run CI script
         run: |
           cd ${{ github.workspace }}
-          CI_CONFIG="ci/configs/netbsd.bash" bash ci/scripts/ci.sh
+          CI_CONFIG="ci/configs/netbsd.bash" ${{ matrix.env_vars }} bash ci/scripts/ci.sh
 
   build-openbsd:
     runs-on: ubuntu-latest
diff --git a/ci/configs/netbsd.bash b/ci/configs/netbsd.bash
index c3e7d258..203b6623 100644
--- a/ci/configs/netbsd.bash
+++ b/ci/configs/netbsd.bash
@@ -1,11 +1,5 @@
 CI_DESC="CI config for NetBSD"
 CI_DIR=build-netbsd
-export CXXFLAGS="-Werror -Wall -Wextra -Wpedantic -Wno-unused-parameter"
-# Hardcode GCC 14, since default GCC versions installed by NetBSD are older
-# and may not be compatible with libmultiprocess. GCC 14 was chosen because
-# it's the latest compiler available on all versions of NetBSD that we test.
-# Note that the GCC version specified here must match the version specified
-# in pkg_add in ci.yml.
-export CXX="/usr/pkg/gcc14/bin/g++"
+export CXXFLAGS="-Werror -Wall -Wextra -Wpedantic -Wno-unused-parameter ${CXXFLAGS:-}"
 CMAKE_ARGS=(-G Ninja)
 BUILD_ARGS=(-k 0)
diff --git a/include/mp/proxy-types.h b/include/mp/proxy-types.h
index ed458209..b790dd39 100644
--- a/include/mp/proxy-types.h
+++ b/include/mp/proxy-types.h
@@ -627,7 +627,7 @@ template <typename Accessor, typename... Args>
 auto PassField(Priority<2>, Args&&... args) -> decltype(CustomPassField<Accessor>(std::forward<Args>(args)...))
 {
     return CustomPassField<Accessor>(std::forward<Args>(args)...);
-};
+}
 
 template <int argc, typename Accessor, typename Parent>
 struct ServerField : Parent
diff --git a/include/mp/type-function.h b/include/mp/type-function.h
index 951e0885..fade9b42 100644
--- a/include/mp/type-function.h
+++ b/include/mp/type-function.h
@@ -61,7 +61,7 @@ decltype(auto) CustomReadField(TypeList<std::function<FnR(FnParams...)>> types,
         return read_dest.construct(ProxyCallFn<decltype(client)>{std::move(client)});
     }
     return read_dest.construct();
-};
+}
 } // namespace mp
 
 #endif // MP_PROXY_TYPE_FUNCTION_H