diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04fc9fc..bdff676 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,26 +13,33 @@ env:
 jobs:
   check:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        combo:
+        - otp-version: '25.2'
+          rebar3-version: '3.18.0'
+        - otp-version: '26.2'
+          rebar3-version: '3.23.0'
+        - otp-version: '27.2'
+          rebar3-version: '3.24.0'
+        - otp-version: '28.0'
+          rebar3-version: '3.25.0'
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: webfactory/ssh-agent@v0.7.0
+      - uses: erlef/setup-beam@v1.18
         with:
-          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
+          otp-version: ${{ matrix.combo.otp-version }}
+          rebar3-version: ${{ matrix.combo.rebar3-version }}
 
-      - uses: erlef/setup-beam@v1
-        with:
-          otp-version: ${{ env.OTP-VERSION }}
-          rebar3-version: ${{ env.REBAR3-VERSION }}
-
-      - uses: actions/cache@v3.2.6
+      - uses: actions/cache@v4
         id: rebar3-cache
         with:
           path: |
             ~/.cache/rebar3
             _build
-          key: ${{ runner.os }}-${{ env.OTP-VERSION }}-${{ env.REBAR3-VERSION }}-${{ hashFiles('rebar.lock') }}
+          key: ${{ runner.os }}-${{ runner.arch }}-${{ matrix.combo.otp-version }}-${{ matrix.combo.rebar3-version }}-${{ hashFiles('rebar.lock') }}
 
       - name: Compile
         run: |
diff --git a/rebar.config b/rebar.config
index 2d23bce..932e0ee 100644
--- a/rebar.config
+++ b/rebar.config
@@ -9,23 +9,24 @@
 {shell, [nuid]}.
 
 {project_plugins, [
-    {erlfmt, {git, "git@github.com:WhatsApp/erlfmt.git", {branch, "main"}}},
-    {gradualizer, {git, "git@github.com:josefs/Gradualizer.git", {branch, "master"}}}
+    erlfmt,
+    {gradualizer, {git, "https://github.com/josefs/Gradualizer.git", {tag, "0.3.0"}}}
 ]}.
+
 {erlfmt, [write]}.
 
 {profiles, [
     {test, [
         {erl_opts, [nowarn_export_all]},
         {deps, [
-            {nct_util, {git, "git@github.com:nomasystems/nct_util.git", {branch, "main"}}},
-            {triq, {git, "git@github.com:nomasystems/triq.git", {branch, "master"}}}
+            {nct_util, {git, "https://github.com/nomasystems/nct_util.git", {branch, "main"}}},
+            {triq, {git, "https://github.com/nomasystems/triq.git", {branch, "master"}}}
         ]}
     ]},
     {bench, [
         {deps, [
-            {eflambe, {git, "git@github.com:Stratus3D/eflambe.git", {branch, "master"}}},
-            {erlperf, {git, "git@github.com:max-au/erlperf.git", {branch, "master"}}}
+            {eflambe, {git, "https://github.com/Stratus3D/eflambe.git", {branch, "master"}}},
+            {erlperf, {git, "https://github.com/max-au/erlperf.git", {branch, "master"}}}
         ]},
         {extra_src_dirs, [{"bench", [{recursive, false}]}]}
     ]}