diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index f13266772c78..d824a597ffc0 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -521,6 +521,12 @@ jobs:
     steps:
       - name: 📂 Checkout code
         uses: actions/checkout@v5
+      - name: Prepare for MSRV testing
+        # Resolver v3 requires Rust 1.84+ to parse the Cargo.toml, but our library MSRV is 1.75.
+        # We temporarily downgrade to resolver v2 for MSRV testing.
+        run: |
+          echo "Patching Cargo.toml for MSRV testing (resolver v3 requires Rust 1.84+)"
+          sed -i 's/resolver = "3"/resolver = "2"/g' Cargo.toml
       - uses: baptiste0928/cargo-install@v3
         with:
           crate: cargo-msrv
diff --git a/Cargo.toml b/Cargo.toml
index afa8ba4ea7cf..8bf8e998ebe2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ members = [
   "prqlc/prqlc/examples/compile-files", # An example
   "web/book",
 ]
-resolver = "2"
+resolver = "3"
 
 [workspace.package]
 authors = ["PRQL Developers"]