diff --git a/.github/workflows/build-sample-project.yml b/.github/workflows/build-sample-project.yml
index fb4f272..8e469fe 100644
--- a/.github/workflows/build-sample-project.yml
+++ b/.github/workflows/build-sample-project.yml
@@ -17,7 +17,7 @@ jobs:
           - ubuntu-latest
           # - windows-latest # for some reason windows build is not picking dune 3.5
         ocaml-compiler:
-          - 5.1.x
+          - 5.2.x
 
       fail-fast: false
     runs-on: ${{ matrix.system }}
@@ -29,9 +29,10 @@ jobs:
           node-version: current
 
       - name: Use OCaml ${{ matrix.ocaml-compiler }}
-        uses: jchavarri/setup-ocaml@opam-v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
+          allow-prerelease-opam: true
 
       - name: Install all deps
         run: make install
diff --git a/CHANGES.md b/CHANGES.md
index 542ba21..d3fba6a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+## v3.0.0 (2024-09-24)
+
+- Support opam 2.3
+
 ## v2.0.0 (2023-09-24)
 
 - Support opam 2.2
diff --git a/Makefile b/Makefile
index 13d8413..8643c38 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ help: ## Print this help message
 
 .PHONY: create-switch
 create-switch: ## Create opam switch
-	opam switch create . 5.1.0 -y --deps-only
+	opam switch create . 5.2.0 -y --deps-only
 
 .PHONY: init
 init: create-switch install ## Configure everything to develop this repository in local
diff --git a/opam-check-npm-deps.opam b/opam-check-npm-deps.opam
index e57aa82..70cef1d 100644
--- a/opam-check-npm-deps.opam
+++ b/opam-check-npm-deps.opam
@@ -12,7 +12,7 @@ depends: [
   "ocaml" {>= "4.14.0"}
   "reason" {>= "3.8.1"}
   "dune" {>= "3.8"}
-  "opam-client" {>= "2.2" & < "2.3"}
+  "opam-client" {>= "2.3" & < "2.4"}
   "mccs" {>= "1.1+14"}
   "angstrom" {>= "0.15.0"}
   "fmt" {>= "0.9.0"}
@@ -25,7 +25,7 @@ depends: [
   "ppx_sexp_conv"
   "odoc" {with-doc}
 ]
-available: opam-version >= "2.2" & opam-version < "2.3"
+available: opam-version >= "2.3" & opam-version < "2.4"
 build: [
   ["dune" "subst"] {dev}
   [
diff --git a/test/run.t b/test/run.t
index 051fa3e..aa1a09f 100644
--- a/test/run.t
+++ b/test/run.t
@@ -29,7 +29,7 @@ When --dry-run is used, exit code is 0
   > {
   >   "license": "MIT",
   >   "dependencies": {
-  >     "react": "^18.2.0"
+  >     "react": "18.2.0"
   >   }
   > }
   > EOF
@@ -137,8 +137,8 @@ Errors when version does not match
   > {
   >   "license": "MIT",
   >   "dependencies": {
-  >     "react": "^18.2.0",
-  >     "react-dom": "^18.2.0"
+  >     "react": "18.2.0",
+  >     "react-dom": "18.2.0"
   >   }
   > }
   > EOF
@@ -182,8 +182,8 @@ Supports package with more than one depext
   > {
   >   "license": "MIT",
   >   "dependencies": {
-  >     "react": "^16.0.2",
-  >     "react-dom": "^16.0.2"
+  >     "react": "16.14.0",
+  >     "react-dom": "16.14.0"
   >   }
   > }
   > EOF
@@ -225,8 +225,8 @@ Supports having more than one npm package in the syspkg list
   > {
   >   "license": "MIT",
   >   "dependencies": {
-  >     "react": "^16.0.2",
-  >     "react-dom": "^16.0.2"
+  >     "react": "16.14.0",
+  >     "react-dom": "16.14.0"
   >   }
   > }
   > EOF
@@ -268,7 +268,7 @@ Supports || filters in the npm-version string
   > {
   >   "license": "MIT",
   >   "dependencies": {
-  >     "react": "^17.0.0"
+  >     "react": "17.0.2"
   >   }
   > }
   > EOF