diff --git a/action.yml b/action.yml
index ee0b1d7..50fdf2e 100644
--- a/action.yml
+++ b/action.yml
@@ -126,6 +126,7 @@ runs:
       env:
         VOCIFERATE_BIN: ${{ steps.resolve-binary.outputs.binary_path }}
         USE_BINARY: ${{ steps.resolve-binary.outputs.use_binary }}
+        VOCIFERATE_REPOSITORY_URL: ${{ vars.VOCIFERATE_REPOSITORY_URL }}
       run: |
         set -euo pipefail
 
diff --git a/internal/vociferate/vociferate.go b/internal/vociferate/vociferate.go
index 80ab7e4..05f4725 100644
--- a/internal/vociferate/vociferate.go
+++ b/internal/vociferate/vociferate.go
@@ -337,10 +337,13 @@ func readLatestChangelogVersion(rootDir, changelogPath string) (string, bool, er
 func deriveRepositoryURL(rootDir string) (string, bool) {
 	override := strings.TrimSpace(os.Getenv("VOCIFERATE_REPOSITORY_URL"))
 	if override != "" {
-		if normalized, ok := normalizeRepoURL(override); ok {
-			return normalized, true
+		repositoryPath, ok := deriveRepositoryPath(rootDir)
+		if !ok {
+			return "", false
 		}
-		return strings.TrimSuffix(override, "/"), true
+
+		baseURL := strings.TrimSuffix(strings.TrimSpace(override), "/")
+		return baseURL + "/" + repositoryPath, true
 	}
 
 	serverURL := strings.TrimSpace(os.Getenv("GITHUB_SERVER_URL"))
@@ -368,6 +371,38 @@ func deriveRepositoryURL(rootDir string) (string, bool) {
 	return repoURL, true
 }
 
+func deriveRepositoryPath(rootDir string) (string, bool) {
+	repository := strings.TrimSpace(os.Getenv("GITHUB_REPOSITORY"))
+	if repository != "" {
+		return strings.TrimPrefix(repository, "/"), true
+	}
+
+	gitConfigPath := filepath.Join(rootDir, ".git", "config")
+	contents, err := os.ReadFile(gitConfigPath)
+	if err != nil {
+		return "", false
+	}
+
+	remoteURL, ok := originRemoteURLFromGitConfig(string(contents))
+	if !ok {
+		return "", false
+	}
+
+	repoURL, ok := normalizeRepoURL(remoteURL)
+	if !ok {
+		return "", false
+	}
+
+	parsedURL := strings.TrimPrefix(repoURL, "https://")
+	parsedURL = strings.TrimPrefix(parsedURL, "http://")
+	slash := strings.Index(parsedURL, "/")
+	if slash == -1 || slash == len(parsedURL)-1 {
+		return "", false
+	}
+
+	return parsedURL[slash+1:], true
+}
+
 func originRemoteURLFromGitConfig(config string) (string, bool) {
 	inOrigin := false
 	for _, line := range strings.Split(config, "\n") {
@@ -403,7 +438,8 @@ func normalizeRepoURL(remoteURL string) (string, bool) {
 	}
 
 	if strings.HasPrefix(remoteURL, "http://") || strings.HasPrefix(remoteURL, "https://") {
-		return strings.TrimSuffix(remoteURL, ".git"), true
+		normalized := strings.TrimSuffix(strings.TrimSuffix(remoteURL, "/"), ".git")
+		return normalized, true
 	}
 
 	if strings.HasPrefix(remoteURL, "ssh://") {
diff --git a/prepare/action.yml b/prepare/action.yml
index 2362f2b..974a2e1 100644
--- a/prepare/action.yml
+++ b/prepare/action.yml
@@ -142,6 +142,7 @@ runs:
         VOCIFERATE_BIN: ${{ steps.resolve-binary.outputs.binary_path }}
         USE_BINARY: ${{ steps.resolve-binary.outputs.use_binary }}
         INPUT_VERSION: ${{ inputs.version }}
+        VOCIFERATE_REPOSITORY_URL: ${{ vars.VOCIFERATE_REPOSITORY_URL }}
       run: |
         set -euo pipefail