diff --git a/client/securedrop_client/gui/auth/dialog.py b/client/securedrop_client/gui/auth/dialog.py
index 9b6c14cd9e..f8f34e8fcf 100644
--- a/client/securedrop_client/gui/auth/dialog.py
+++ b/client/securedrop_client/gui/auth/dialog.py
@@ -19,7 +19,6 @@
 import logging
 from gettext import gettext as _
 
-from pkg_resources import resource_string
 from PyQt5.QtCore import QSize, Qt
 from PyQt5.QtGui import QBrush, QPalette
 from PyQt5.QtWidgets import (
@@ -39,7 +38,7 @@
 from securedrop_client.gui.base import PasswordEdit
 from securedrop_client.gui.base.checkbox import SDCheckBox
 from securedrop_client.logic import Controller
-from securedrop_client.resources import load_image
+from securedrop_client.resources import load_image, load_relative_css
 
 logger = logging.getLogger(__name__)
 
@@ -82,8 +81,7 @@ def __init__(self, parent: QWidget) -> None:
         form = QWidget()
 
         form.setObjectName("LoginDialog_form")
-        styles = resource_string(__name__, "dialog.css").decode("utf-8")
-        self.setStyleSheet(styles)
+        self.setStyleSheet(load_relative_css(__file__, "dialog.css"))
 
         form_layout = QVBoxLayout()
         form.setLayout(form_layout)
diff --git a/client/securedrop_client/gui/auth/sign_in/button.py b/client/securedrop_client/gui/auth/sign_in/button.py
index 2d14753a07..f9a4ef17db 100644
--- a/client/securedrop_client/gui/auth/sign_in/button.py
+++ b/client/securedrop_client/gui/auth/sign_in/button.py
@@ -18,11 +18,12 @@
 """
 from gettext import gettext as _
 
-from pkg_resources import resource_string
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QColor, QCursor
 from PyQt5.QtWidgets import QGraphicsDropShadowEffect, QPushButton
 
+from securedrop_client.resources import load_relative_css
+
 
 class SignInButton(QPushButton):
     """
@@ -35,8 +36,7 @@ def __init__(self) -> None:
 
         # Set css id
         self.setObjectName("SignInButton")
-        styles = resource_string(__name__, "button.css").decode("utf-8")
-        self.setStyleSheet(styles)
+        self.setStyleSheet(load_relative_css(__file__, "button.css"))
 
         self.setFixedHeight(40)
         self.setFixedWidth(140)
diff --git a/client/securedrop_client/gui/auth/sign_in/error_bar.py b/client/securedrop_client/gui/auth/sign_in/error_bar.py
index 6302b00d2a..69eb71dc0c 100644
--- a/client/securedrop_client/gui/auth/sign_in/error_bar.py
+++ b/client/securedrop_client/gui/auth/sign_in/error_bar.py
@@ -16,11 +16,12 @@
 You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
-from pkg_resources import resource_string
+
 from PyQt5.QtCore import QSize
 from PyQt5.QtWidgets import QHBoxLayout, QWidget
 
 from securedrop_client.gui.base import SecureQLabel, SvgLabel
+from securedrop_client.resources import load_relative_css
 
 
 class LoginErrorBar(QWidget):
@@ -32,8 +33,7 @@ def __init__(self) -> None:
         super().__init__()
 
         self.setObjectName("LoginErrorBar")
-        styles = resource_string(__name__, "error_bar.css").decode("utf-8")
-        self.setStyleSheet(styles)
+        self.setStyleSheet(load_relative_css(__file__, "error_bar.css"))
 
         # Set layout
         layout = QHBoxLayout(self)
diff --git a/client/securedrop_client/gui/base/checkbox.py b/client/securedrop_client/gui/base/checkbox.py
index 73e3973480..39f66665ac 100644
--- a/client/securedrop_client/gui/base/checkbox.py
+++ b/client/securedrop_client/gui/base/checkbox.py
@@ -7,21 +7,21 @@
 """
 from gettext import gettext as _
 
-from pkg_resources import resource_string
 from PyQt5.QtCore import Qt, pyqtSignal
 from PyQt5.QtGui import QCursor, QFont, QMouseEvent
 from PyQt5.QtWidgets import QCheckBox, QFrame, QHBoxLayout, QLabel, QWidget
 
+from securedrop_client.resources import load_relative_css
+
 
 class SDCheckBox(QWidget):
     clicked = pyqtSignal()
-    CHECKBOX_CSS = resource_string(__name__, "checkbox.css").decode("utf-8")
     PASSPHRASE_LABEL_SPACING = 1
 
     def __init__(self) -> None:
         super().__init__()
         self.setObjectName("ShowPassphrase_widget")
-        self.setStyleSheet(self.CHECKBOX_CSS)
+        self.setStyleSheet(load_relative_css(__file__, "checkbox.css"))
 
         font = QFont()
         font.setLetterSpacing(QFont.AbsoluteSpacing, self.PASSPHRASE_LABEL_SPACING)
diff --git a/client/securedrop_client/gui/base/dialogs.py b/client/securedrop_client/gui/base/dialogs.py
index d5cc5feb7d..d05e68179b 100644
--- a/client/securedrop_client/gui/base/dialogs.py
+++ b/client/securedrop_client/gui/base/dialogs.py
@@ -18,7 +18,6 @@
 """
 from gettext import gettext as _
 
-from pkg_resources import resource_string
 from PyQt5.QtCore import QSize, Qt
 from PyQt5.QtGui import QIcon, QKeyEvent, QPixmap
 from PyQt5.QtWidgets import (
@@ -33,13 +32,13 @@
 )
 
 from securedrop_client.gui.base.misc import SvgLabel
-from securedrop_client.resources import load_movie
+from securedrop_client.resources import load_movie, load_relative_css
 
 
 class ModalDialog(QDialog):
-    DIALOG_CSS = resource_string(__name__, "dialogs.css").decode("utf-8")
-    BUTTON_CSS = resource_string(__name__, "dialog_button.css").decode("utf-8")
-    ERROR_DETAILS_CSS = resource_string(__name__, "dialog_message.css").decode("utf-8")
+    DIALOG_CSS = load_relative_css(__file__, "dialogs.css")
+    BUTTON_CSS = load_relative_css(__file__, "dialog_button.css")
+    ERROR_DETAILS_CSS = load_relative_css(__file__, "dialog_message.css")
 
     MARGIN = 40
     NO_MARGIN = 0
diff --git a/client/securedrop_client/gui/conversation/export/export_wizard.py b/client/securedrop_client/gui/conversation/export/export_wizard.py
index 2043a5bd81..6750770bb8 100644
--- a/client/securedrop_client/gui/conversation/export/export_wizard.py
+++ b/client/securedrop_client/gui/conversation/export/export_wizard.py
@@ -2,7 +2,6 @@
 from gettext import gettext as _
 from typing import List, Optional
 
-from pkg_resources import resource_string
 from PyQt5.QtCore import QSize, Qt, pyqtSlot
 from PyQt5.QtGui import QIcon, QKeyEvent
 from PyQt5.QtWidgets import QAbstractButton  # noqa: F401
@@ -20,7 +19,7 @@
     PassphraseWizardPage,
     PreflightPage,
 )
-from securedrop_client.resources import load_movie
+from securedrop_client.resources import load_movie, load_relative_css
 
 logger = logging.getLogger(__name__)
 
@@ -34,8 +33,6 @@ class ExportWizard(QWizard):
     NO_MARGIN = 0
     FILENAME_WIDTH_PX = 260
     FILE_OPTIONS_FONT_SPACING = 1.6
-    BUTTON_CSS = resource_string(__name__, "wizard_button.css").decode("utf-8")
-    WIZARD_CSS = resource_string(__name__, "wizard.css").decode("utf-8")
 
     # If the drive is unlocked, we don't need a passphrase; if we do need one,
     # it's populated later.
@@ -97,6 +94,7 @@ def _style_buttons(self) -> None:
         self.button_animation = load_movie("activestate-wide.gif")
         self.button_animation.setScaledSize(QSize(32, 32))
         self.button_animation.frameChanged.connect(self._animate_activestate)
+        button_stylesheet = load_relative_css(__file__, "wizard_button.css")
 
         # Buttons
         self.next_button = self.button(QWizard.WizardButton.NextButton)  # type: QAbstractButton
@@ -105,7 +103,7 @@ def _style_buttons(self) -> None:
         self.finish_button = self.button(QWizard.WizardButton.FinishButton)  # type: QAbstractButton
 
         self.next_button.setObjectName("QWizardButton_PrimaryButton")
-        self.next_button.setStyleSheet(self.BUTTON_CSS)
+        self.next_button.setStyleSheet(button_stylesheet)
         self.next_button.setMinimumSize(QSize(142, 40))
         self.next_button.setMaximumHeight(40)
         self.next_button.setIconSize(QSize(21, 21))
@@ -113,19 +111,19 @@ def _style_buttons(self) -> None:
         self.next_button.setFixedSize(QSize(142, 40))
 
         self.cancel_button.setObjectName("QWizardButton_GenericButton")
-        self.cancel_button.setStyleSheet(self.BUTTON_CSS)
+        self.cancel_button.setStyleSheet(button_stylesheet)
         self.cancel_button.setMinimumSize(QSize(142, 40))
         self.cancel_button.setMaximumHeight(40)
         self.cancel_button.setFixedSize(QSize(142, 40))
 
         self.back_button.setObjectName("QWizardButton_GenericButton")
-        self.back_button.setStyleSheet(self.BUTTON_CSS)
+        self.back_button.setStyleSheet(button_stylesheet)
         self.back_button.setMinimumSize(QSize(142, 40))
         self.back_button.setMaximumHeight(40)
         self.back_button.setFixedSize(QSize(142, 40))
 
         self.finish_button.setObjectName("QWizardButton_GenericButton")
-        self.finish_button.setStyleSheet(self.BUTTON_CSS)
+        self.finish_button.setStyleSheet(button_stylesheet)
         self.finish_button.setMinimumSize(QSize(142, 40))
         self.finish_button.setMaximumHeight(40)
         self.finish_button.setFixedSize(QSize(142, 40))
@@ -149,7 +147,7 @@ def _set_layout(self) -> None:
         title = ("Export %(summary)s") % {"summary": self.summary_text}
         self.setWindowTitle(title)
         self.setObjectName("QWizard_export")
-        self.setStyleSheet(self.WIZARD_CSS)
+        self.setStyleSheet(load_relative_css(__file__, "wizard.css"))
         self.setModal(False)
         self.setOptions(
             QWizard.NoBackButtonOnLastPage
diff --git a/client/securedrop_client/gui/conversation/export/export_wizard_page.py b/client/securedrop_client/gui/conversation/export/export_wizard_page.py
index e83ecb1bd4..e85b7c57c0 100644
--- a/client/securedrop_client/gui/conversation/export/export_wizard_page.py
+++ b/client/securedrop_client/gui/conversation/export/export_wizard_page.py
@@ -2,7 +2,6 @@
 from gettext import gettext as _
 from typing import Optional
 
-from pkg_resources import resource_string
 from PyQt5.QtCore import QSize, Qt, pyqtSlot
 from PyQt5.QtGui import QColor, QFont, QPixmap
 from PyQt5.QtWidgets import (
@@ -21,7 +20,7 @@
 from securedrop_client.gui.base.checkbox import SDCheckBox
 from securedrop_client.gui.base.misc import SvgLabel
 from securedrop_client.gui.conversation.export.export_wizard_constants import STATUS_MESSAGES, Pages
-from securedrop_client.resources import load_movie
+from securedrop_client.resources import load_movie, load_relative_css
 
 logger = logging.getLogger(__name__)
 
@@ -47,9 +46,6 @@ class ExportWizardPage(QWizardPage):
           appears on recoverable error to help the user advance to the next stage)
     """
 
-    WIZARD_CSS = resource_string(__name__, "wizard.css").decode("utf-8")
-    ERROR_DETAILS_CSS = resource_string(__name__, "wizard_message.css").decode("utf-8")
-
     MARGIN = 40
     PASSPHRASE_LABEL_SPACING = 0.5
     NO_MARGIN = 0
@@ -94,7 +90,8 @@ def _build_layout(self) -> QVBoxLayout:
         Create parent layout, draw elements, return parent layout
         """
         self.setObjectName("QWizard_export_page")
-        self.setStyleSheet(self.WIZARD_CSS)
+        self.setStyleSheet(load_relative_css(__file__, "wizard.css"))
+
         parent_layout = QVBoxLayout(self)
         parent_layout.setContentsMargins(self.MARGIN, self.MARGIN, self.MARGIN, self.MARGIN)
 
@@ -139,7 +136,7 @@ def _build_layout(self) -> QVBoxLayout:
         # Widget for displaying error messages (hidden by default)
         self.error_details = QLabel()
         self.error_details.setObjectName("QWizard_error_details")
-        self.error_details.setStyleSheet(self.ERROR_DETAILS_CSS)
+        self.error_details.setStyleSheet(load_relative_css(__file__, "wizard_message.css"))
         self.error_details.setContentsMargins(
             self.NO_MARGIN, self.NO_MARGIN, self.NO_MARGIN, self.NO_MARGIN
         )
diff --git a/client/securedrop_client/gui/main.py b/client/securedrop_client/gui/main.py
index 351e47bc3d..237838af1e 100644
--- a/client/securedrop_client/gui/main.py
+++ b/client/securedrop_client/gui/main.py
@@ -32,7 +32,7 @@
 from securedrop_client.gui.auth import LoginDialog
 from securedrop_client.gui.widgets import LeftPane, MainView, TopPane
 from securedrop_client.logic import Controller
-from securedrop_client.resources import load_css, load_font, load_icon
+from securedrop_client.resources import load_all_fonts, load_css, load_icon
 
 logger = logging.getLogger(__name__)
 
@@ -59,8 +59,7 @@ def __init__(
           place for details / message contents / forms.
         """
         super().__init__()
-        load_font("Montserrat")
-        load_font("Source_Sans_Pro")
+        load_all_fonts()
         self.setStyleSheet(load_css("sdclient.css"))
         self.setWindowTitle(_("SecureDrop Client {}").format(__version__))
         self.setWindowIcon(load_icon(self.icon))
diff --git a/client/securedrop_client/resources/__init__.py b/client/securedrop_client/resources/__init__.py
index 539b39b593..d31f1a7c30 100644
--- a/client/securedrop_client/resources/__init__.py
+++ b/client/securedrop_client/resources/__init__.py
@@ -17,33 +17,33 @@
 You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
-import os
+from pathlib import Path
 from typing import Optional
 
-from pkg_resources import resource_filename, resource_string
 from PyQt5.QtCore import QDir
 from PyQt5.QtGui import QFontDatabase, QIcon, QMovie, QPixmap
 from PyQt5.QtSvg import QSvgWidget
 
+RESOURCES_DIR = Path(__file__).parent
+
 # Add resource directories to the search path.
-QDir.addSearchPath("images", resource_filename(__name__, "images"))
-QDir.addSearchPath("css", resource_filename(__name__, "css"))
+QDir.addSearchPath("images", str(RESOURCES_DIR / "images"))
+QDir.addSearchPath("css", str(RESOURCES_DIR / "css"))
 
 
-def path(name: str, resource_dir: str = "images/") -> str:
+def path(name: str) -> str:
     """
     Return the filename for the referenced image.
 
     Qt uses unix path conventions.
     """
-    return resource_filename(__name__, resource_dir + name)
+    return str(RESOURCES_DIR / "images" / name)
 
 
-def load_font(font_folder_name: str) -> None:
-    directory = resource_filename(__name__, "fonts/") + font_folder_name
-    for filename in os.listdir(directory):
-        if filename.endswith(".ttf"):
-            QFontDatabase.addApplicationFont(directory + "/" + filename)
+def load_all_fonts() -> None:
+    """Load all the fonts in the fonts/ directory"""
+    for font in (RESOURCES_DIR / "fonts").glob("**/*.ttf"):
+        QFontDatabase.addApplicationFont(str(font.absolute()))
 
 
 def load_icon(
@@ -133,7 +133,15 @@ def load_css(name: str) -> str:
     """
     Return the contents of the referenced CSS file in the resources.
     """
-    return resource_string(__name__, "css/" + name).decode("utf-8")
+    return (RESOURCES_DIR / "css" / name).read_text()
+
+
+def load_relative_css(file: str, name: str) -> str:
+    """
+    Load CSS that's in the same directory as the file calling this.
+    The first argument should be __name__ and the second is the name of the CSS
+    """
+    return (Path(file).parent / name).read_text()
 
 
 def load_movie(name: str) -> QMovie:
diff --git a/client/tests/test_resources.py b/client/tests/test_resources.py
index 99843cd27a..da78b2e4e4 100644
--- a/client/tests/test_resources.py
+++ b/client/tests/test_resources.py
@@ -8,16 +8,6 @@
 from tests.helper import app  # noqa: F401
 
 
-def test_path(mocker):
-    """
-    Ensure the resource_filename function is called with the expected args and
-    the path function under test returns its result.
-    """
-    r = mocker.patch("securedrop_client.resources.resource_filename", return_value="bar")
-    assert securedrop_client.resources.path("foo") == "bar"
-    r.assert_called_once_with(securedrop_client.resources.__name__, "images/foo")
-
-
 def test_load_icon():
     """
     Check the load_icon function returns the expected QIcon object.
@@ -51,16 +41,6 @@ def test_load_image():
     assert isinstance(result, QPixmap)
 
 
-def test_load_css(mocker):
-    """
-    Ensure the resource_string function is called with the expected args and
-    the load_css function returns its result.
-    """
-    rs = mocker.patch("securedrop_client.resources.resource_string", return_value=b"foo")
-    assert "foo" == securedrop_client.resources.load_css("foo")
-    rs.assert_called_once_with(securedrop_client.resources.__name__, "css/foo")
-
-
 def test_load_movie():
     """
     Check the load_movie function returns the expected QMovie object.