diff --git a/.github/workflows/asan_unit_tests.yml b/.github/workflows/asan_unit_tests.yml
index 6e1a4b9d9e..5de1588c8a 100644
--- a/.github/workflows/asan_unit_tests.yml
+++ b/.github/workflows/asan_unit_tests.yml
@@ -15,6 +15,6 @@ jobs:
     - name: Run autotools / configure
       run: ./autogen.sh --enable-debug
     - name: Compile and link (make)
-      run: make -j8 CFLAGS="-Werror -Wall -fsanitize=address" LDFLAGS="-fsanitize=address"
+      run: make -j8 CFLAGS="-Werror -Wall -Wextra -Wno-sign-compare -fsanitize=address" LDFLAGS="-fsanitize=address"
     - name: Run unit tests
       run: make -C tests/unit CFLAGS="-fsanitize=address" LDFLAGS="-fsanitize=address" check
diff --git a/.github/workflows/macos_unit_tests.yml b/.github/workflows/macos_unit_tests.yml
index 014c5cdcc8..193eb86c27 100644
--- a/.github/workflows/macos_unit_tests.yml
+++ b/.github/workflows/macos_unit_tests.yml
@@ -20,6 +20,6 @@ jobs:
       run: >
         ./autogen.sh --enable-debug
     - name: Compile and link
-      run: MACOSX_DEPLOYMENT_TARGET=15.4 make -j8 CFLAGS="-Werror -Wall"
+      run: MACOSX_DEPLOYMENT_TARGET=15.4 make -j8 CFLAGS="-Werror -Wall -Wextra -Wno-sign-compare"
     - name: Run unit tests
       run: make -C tests/unit check
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index c46cb5b19a..0f72353e21 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -16,6 +16,6 @@ jobs:
     - name: Run autotools / configure
       run: ./autogen.sh --enable-debug
     - name: Compile and link (make)
-      run: make -j8 CFLAGS="-Werror -Wall"
+      run: make -j8 CFLAGS="-Werror -Wall -Wextra -Wno-sign-compare"
     - name: Run unit tests
       run: make -C tests/unit check
diff --git a/libntech b/libntech
index 11be6817ae..b05a7a3d16 160000
--- a/libntech
+++ b/libntech
@@ -1 +1 @@
-Subproject commit 11be6817ae8067aa3a1626a3871deb872093e0e2
+Subproject commit b05a7a3d1664bbc5ec7b029071cb54a80154c925
diff --git a/tests/acceptance/01_vars/02_functions/getindices_returns_expected_list_from_datacontainer.cf b/tests/acceptance/01_vars/02_functions/getindices_returns_expected_list_from_datacontainer.cf
index 6fc8f93606..d675ebd424 100644
--- a/tests/acceptance/01_vars/02_functions/getindices_returns_expected_list_from_datacontainer.cf
+++ b/tests/acceptance/01_vars/02_functions/getindices_returns_expected_list_from_datacontainer.cf
@@ -22,7 +22,10 @@ bundle agent init
           "alpha",
           "bravo"
          ],
-  "bar": { "one": "1"  "two": "2" }
+  "bar": {
+          "one": "1",
+          "two": "2"
+         }
 }');
 }
 
diff --git a/tests/acceptance/10_files/file_select_attrs_consistent_behavior/rules.json b/tests/acceptance/10_files/file_select_attrs_consistent_behavior/rules.json
index 352beedf05..be311e4319 100644
--- a/tests/acceptance/10_files/file_select_attrs_consistent_behavior/rules.json
+++ b/tests/acceptance/10_files/file_select_attrs_consistent_behavior/rules.json
@@ -1,6 +1,6 @@
 [
 {
-"location": "/tmp/logs/tidy"
+"location": "/tmp/logs/tidy",
 "context": "any",
 "action": "TIDY",
 "frequency": "10",