diff --git a/tests/test_version-increment.bats b/tests/test_version-increment.bats
index b6bd967..3f638d3 100644
--- a/tests/test_version-increment.bats
+++ b/tests/test_version-increment.bats
@@ -104,6 +104,20 @@ function init_repo {
     [[ "$output" = *"::set-output name=version::2.0.0"* ]]
 }
 
+@test "prefixes with v" {
+    init_repo
+
+    export current_version=1.2.3
+    export increment="major"
+
+    run ../../version-increment.sh
+
+    print_run_info
+    [ "$status" -eq 0 ] &&
+    [[ "$output" = *"::set-output name=version::2.0.0"* ]] &&
+    [[ "$output" = *"::set-output name=v-version::v2.0.0"* ]]
+}
+
 @test "increments to a new month (calver)" {
     init_repo
 
diff --git a/tests/test_version-lookup.bats b/tests/test_version-lookup.bats
index f5bd50f..1ea10d1 100644
--- a/tests/test_version-lookup.bats
+++ b/tests/test_version-lookup.bats
@@ -43,6 +43,19 @@ function init_repo {
     [[ "$output" = *"::set-output name=current-version::0.1.2"* ]]
 }
 
+@test "prefixes with a v" {
+    init_repo
+
+    git tag 0.1.2
+
+    run ../../version-lookup.sh
+
+    print_run_info
+    [ "$status" -eq 0 ] &&
+    [[ "$output" = *"::set-output name=current-version::0.1.2"* ]] &&
+    [[ "$output" = *"::set-output name=current-v-version::v0.1.2"* ]]
+}
+
 @test "finds the current normal version even if there's a newer pre-release version" {
     init_repo