diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ffaca1ca..eaa67128 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,10 +17,15 @@ 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
-            capnproto-cppflags: 'CPPFLAGS="-DKJ_NO_EXCEPTIONS=0"'
+          - release: '10.1'
+            # Hardcode GCC 14, since default GCC version is older
+            # and may not be compatible with libmultiprocess.
+            packages: 'gcc14'
+            env_vars: 'CXX=/usr/pkg/gcc14/bin/g++'
+            capnproto_from_pkgsrc: true
+          - release: '11.0'
+            packages: 'capnproto pkgconf'
+            capnproto_from_pkgsrc: false
     steps:
       - uses: actions/checkout@v6
 
@@ -28,42 +33,38 @@ jobs:
         uses: vmactions/netbsd-vm@v1
         with:
           release: ${{ matrix.release }}
-          # The installed compiler version must match the CXX variable
-          # defined in `ci/configs/netbsd.bash`.
           prepare: |
-            pkg_add cmake ninja-build gcc14
-          # capnproto prerequisites.
-          # See the following "Install capnproto" step.
-          run: |
-            set -e
-            pkg_add digest libtool-base mktools pkgconf cwrappers
-            pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities
-            cd /usr
-            cvs -danoncvs@anoncvs.NetBSD.org:/cvsroot checkout -P \
-              pkgsrc/devel/capnproto \
-              pkgsrc/devel/libtool-base \
-              pkgsrc/devel/pkgconf \
-              pkgsrc/devel/zlib \
-              `# gcc15 is referenced here because the pkgsrc framework requires lang/gcc15/version.mk to exist` \
-              `# during the "make install" step below, even though we compile our project with gcc14.` \
-              pkgsrc/lang/gcc15 \
-              pkgsrc/mk \
-              pkgsrc/pkgtools \
-              pkgsrc/security/openssl \
-              pkgsrc/sysutils/install-sh/files
+            pkg_add cmake ninja-build ${{ matrix.packages }}
           sync: 'rsync'
           copyback: false
 
       - name: Install capnproto
+        if: matrix.capnproto_from_pkgsrc
         run: |
+          set -e
+          pkg_add digest libtool-base mktools pkgconf cwrappers
+          pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities
+          cd /usr
+          cvs -danoncvs@anoncvs.NetBSD.org:/cvsroot checkout -P \
+            pkgsrc/devel/capnproto \
+            pkgsrc/devel/libtool-base \
+            pkgsrc/devel/pkgconf \
+            pkgsrc/devel/zlib \
+            `# gcc15 is referenced here because the pkgsrc framework requires lang/gcc15/version.mk to exist` \
+            `# during the "make install" step below, even though we compile our project with gcc14.` \
+            pkgsrc/lang/gcc15 \
+            pkgsrc/mk \
+            pkgsrc/pkgtools \
+            pkgsrc/security/openssl \
+            pkgsrc/sysutils/install-sh/files
           cd /usr/pkgsrc/devel/capnproto/
           unset PKG_PATH
-          make ${{ matrix.capnproto-cppflags }} install
+          make CPPFLAGS="-DKJ_NO_EXCEPTIONS=0" install
 
       - 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..6167b13a 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++"
 CMAKE_ARGS=(-G Ninja)
 BUILD_ARGS=(-k 0)