diff --git a/cachi2/core/resolver.py b/cachi2/core/resolver.py
index a6071cf80..cb7e79649 100644
--- a/cachi2/core/resolver.py
+++ b/cachi2/core/resolver.py
@@ -16,13 +16,12 @@
     "gomod": gomod.fetch_gomod_source,
     "npm": npm.fetch_npm_source,
     "pip": pip.fetch_pip_source,
+    "yarn": yarn.fetch_yarn_source,
 }
 
 # This is where we put package managers currently under development in order to
 # invoke them via CLI
-_dev_package_managers: dict[PackageManagerType, Handler] = {
-    "yarn": yarn.fetch_yarn_source,
-}
+_dev_package_managers: dict[PackageManagerType, Handler] = {}
 
 # This is *only* used to provide a list for `cachi2 --version`
 supported_package_managers = list(_package_managers)
diff --git a/tests/integration/test_yarn.py b/tests/integration/test_yarn.py
index c9d3bdda6..76e896336 100644
--- a/tests/integration/test_yarn.py
+++ b/tests/integration/test_yarn.py
@@ -19,7 +19,6 @@
                 check_output=False,
                 check_deps_checksums=False,
                 check_vendor_checksums=False,
-                flags=["--dev-package-managers"],
                 expected_exit_code=2,
                 expected_output="PackageRejected: Yarn zero install detected, PnP zero installs are unsupported by cachi2",
             ),
@@ -33,7 +32,6 @@
                 check_output=False,
                 check_vendor_checksums=False,
                 check_deps_checksums=False,
-                flags=["--dev-package-managers"],
                 expected_exit_code=2,
                 expected_output="UnsupportedFeature: Found 8 unsupported dependencies, more details in the logs.",
             ),
@@ -47,7 +45,6 @@
                 check_vendor_checksums=False,
                 expected_exit_code=0,
                 expected_output="Processing the request using yarn@3.6.1",
-                flags=["--dev-package-managers"],
             ),
             id="yarn_correct_version_installed_by_corepack",
         ),
@@ -59,7 +56,6 @@
                 check_output=False,
                 check_vendor_checksums=False,
                 check_deps_checksums=False,
-                flags=["--dev-package-managers"],
                 expected_exit_code=1,
                 expected_output="The lockfile would have been modified by this install, which is explicitly forbidden.",
             ),
@@ -73,7 +69,6 @@
                 check_output=False,
                 check_deps_checksums=False,
                 check_vendor_checksums=False,
-                flags=["--dev-package-managers"],
                 expected_exit_code=1,
                 expected_output="typescript@npm:5.3.3: The remote archive doesn't match the expected checksum",
             ),
@@ -114,7 +109,6 @@ def test_yarn_packages(
                 ref="70515793108df42547d3320c7ea4cd6b6e505c46",
                 packages=({"path": ".", "type": "yarn"},),
                 check_vendor_checksums=False,
-                flags=["--dev-package-managers"],
                 expected_exit_code=0,
                 expected_output="All dependencies fetched successfully",
             ),