diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index fb36075..fa1ad28 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "4.3.0"
+    ".": "4.3.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e76f4e1..6a29fb7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [4.3.1](https://github.com/headlesshq/mc-runtime-test/compare/4.3.0...4.3.1) (2026-04-07)
+
+
+### Bug Fixes
+
+* **versions:** Fixed build cache omitting Jars for some versions ([#131](https://github.com/headlesshq/mc-runtime-test/issues/131)) ([4c073a3](https://github.com/headlesshq/mc-runtime-test/commit/4c073a33e446110b6bcb647b78ffcb063e8299cb))
+
 ## [4.3.0](https://github.com/headlesshq/mc-runtime-test/compare/4.2.0...4.3.0) (2026-04-04)
 
 
diff --git a/README.md b/README.md
index 487da44..39f643a 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ jobs:
           cp build/libs/<your-mod>.jar run/mods
 
       - name: Run MC test client
-        uses: headlesshq/mc-runtime-test@4.3.0 <!-- x-release-please-version -->
+        uses: headlesshq/mc-runtime-test@4.3.1 <!-- x-release-please-version -->
         with:
           mc: 26.1.1
           modloader: fabric
diff --git a/action.yml b/action.yml
index b3e2e11..4786da0 100644
--- a/action.yml
+++ b/action.yml
@@ -119,7 +119,7 @@ runs:
       uses: robinraju/release-downloader@a96f54c1b5f5e09e47d9504526e96febd949d4c2 # v1.11
       with:
         repository: headlesshq/mc-runtime-test
-        tag: "4.3.0" # x-release-please-version
+        tag: "4.3.1" # x-release-please-version
         fileName: 'mc-runtime-test-${{ inputs.mc }}-*-${{ inputs.mc-runtime-test }}-release.jar'
         out-file-path: run/mods
 
diff --git a/api/gradle.properties b/api/gradle.properties
index d31183c..41a6788 100644
--- a/api/gradle.properties
+++ b/api/gradle.properties
@@ -1,3 +1,3 @@
 # x-release-please-start-version
-project_version = 4.3.0
+project_version = 4.3.1
 # x-release-please-end