diff --git a/.github/workflows/waspc-ci.yaml b/.github/workflows/waspc-ci.yaml
index 7cf040c585..77236121f7 100644
--- a/.github/workflows/waspc-ci.yaml
+++ b/.github/workflows/waspc-ci.yaml
@@ -16,6 +16,11 @@ on:
     # (GH deletes it after 7 days of not using it).
     - cron: '0 0 * * 0'
 
+# Cancel other action runs for the same workflow and branch if one is in progress.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
 env:
   WASP_TELEMETRY_DISABLE: 1
 
@@ -25,15 +30,6 @@ defaults:
     working-directory: waspc
 
 jobs:
-  cancel:
-    name: Cancel redundant actions already in progress
-    runs-on: ubuntu-latest
-    steps:
-      - name: Cancel actions in progress of same workflow and same branch
-        uses: styfle/cancel-workflow-action@0.11.0
-        with:
-          access_token: ${{ github.token }}
-
   build:
     name: Build Wasp
     runs-on: ${{ matrix.os }}
@@ -48,7 +44,8 @@ jobs:
           # Still looking into musl static binaries.
           # Ref: https://github.com/wasp-lang/wasp/issues/650
           - ubuntu-20.04
-          - macos-latest
+          # Not using macos-latest becuase of a bug in Haskell setup Github action: https://github.com/haskell-actions/setup/issues/77
+          - macos-13
           - windows-latest
         node-version:
           - 'latest'
@@ -95,7 +92,7 @@ jobs:
 
       - name: Set up Haskell
         id: setup-haskell-cabal
-        uses: haskell/actions/setup@v2
+        uses: haskell-actions/setup@v2
         with:
           ghc-version: ${{ matrix.ghc }}
           cabal-version: ${{ matrix.cabal }}
diff --git a/waspc/README.md b/waspc/README.md
index a6d2925187..90704567a9 100644
--- a/waspc/README.md
+++ b/waspc/README.md
@@ -11,15 +11,15 @@ If you would like to make your first contribution, here is a handy checklist we
 - [ ] Read [Quick overview](#quick-overview).
 - [ ] Compile the project successfully and get todoApp example running (follow [Basics](#basics)).
 - [ ] Join [Discord](https://discord.gg/rzdnErX) and say hi :)!
-- [ ] Pick an issue [labeled with "good first issue"](https://github.com/wasp-lang/wasp/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22) and let us know you would like to work on it - ideally immediatelly propose a plan of action and ask questions.
+- [ ] Pick an issue [labeled with "good first issue"](https://github.com/wasp-lang/wasp/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22) and let us know you would like to work on it - ideally immediately propose a plan of action and ask questions.
       If you can't find a suitable issue for you, reach out to us on Discord and we can try to find smth for you together.
 - [ ] Make a PR targeting `main` and have it accepted! Check [Typical workflow](#typical-development-workflow) and [Branching and merging strategy](#branching-and-merging-strategy) for guidance, and consult [Codebase overview](#codebase-overview) for more details on how Wasp compiler works internally.
 
 ## Quick overview
 
-Wasp compiler is implemented in Haskell, but you will also see a lot of Javascript and other web technologies because Wasp compiles it's own code into them.
+Wasp compiler is implemented in Haskell, but you will also see a lot of Javascript and other web technologies because Wasp compiles its own code into them.
 
-You don't have to be expert in Haskell to contribute or understand the code, since we don't use complicated Haskell features much -> most of the code is relatively simple and straight-forward, and we are happy to help with the part that is not.
+You don't have to be an expert in Haskell to contribute or understand the code, since we don't use complicated Haskell features much -> most of the code is relatively simple and straight-forward, and we are happy to help with the part that is not.
 
 Main result of building the project is `wasp` executable (also reffered to as CLI), which is both Wasp compiler, CLI and Wasp project runner in one - one tool for everything Wasp-related.