diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index df0af17..c5b4e8d 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -6,8 +6,10 @@ jobs:
   Lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
       - uses: psf/black@stable
         with:
           options: ". -l 79 --check"
@@ -15,9 +17,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
       - name: Install dependencies
         run: make install-dev
       - name: Run the main tests
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index c83204c..78dc662 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -10,8 +10,10 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
       - uses: psf/black@stable
         with:
           options: ". -l 79 --check"
@@ -20,9 +22,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
       - name: Install dependencies
         run: make install-dev
       - name: Run the main tests
@@ -32,9 +36,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
       - name: Install dependencies
         run: make install-dev
       - name: Build package
diff --git a/rdbl/main.py b/rdbl/main.py
index 0c1881f..59e1ec1 100644
--- a/rdbl/main.py
+++ b/rdbl/main.py
@@ -31,7 +31,7 @@ def _readable(num, sf=3, prefixes={0: ""}, suffixes={0: ""}):
     place_value = int(log10(num_rounded))
     _, prefix = _highest_matching(prefixes, place_value)
     place, suffix = _highest_matching(suffixes, place_value)
-    reduced_num = _round_sf(num / (10 ** place), sf)
+    reduced_num = _round_sf(num / (10**place), sf)
     if place >= max(suffixes.keys()):
         num_str = format(int(reduced_num), ",")
     else: