diff --git a/.renovaterc.json b/.renovaterc.json
index 360374de..65313ac0 100644
--- a/.renovaterc.json
+++ b/.renovaterc.json
@@ -4,5 +4,10 @@
   ],
   "baseBranches": [
     "chore/renovateBaseBranch"
+  ],
+  "prHourlyLimit": 10,
+  "prConcurrentLimit": 10,
+  "schedule": [
+    "after 10pm every weekday"
   ]
 }
diff --git a/src/rules/spec/githubActions/__snapshots__/component.test.ts.snap b/src/rules/spec/githubActions/__snapshots__/component.test.ts.snap
index 19b3ef53..39fdaae8 100644
--- a/src/rules/spec/githubActions/__snapshots__/component.test.ts.snap
+++ b/src/rules/spec/githubActions/__snapshots__/component.test.ts.snap
@@ -61,7 +61,7 @@ exports[`docker > should match all dependencies 2`] = `
   [
     "docker",
     "postgres",
-    "15.4-alpine",
+    "latest",
   ],
   [
     "githubAction",
@@ -431,7 +431,7 @@ exports[`docker > should match all dependencies 2`] = `
   [
     "githubAction",
     "snyk/actions/php",
-    undefined,
+    "latest",
   ],
   [
     "githubAction",
diff --git a/src/rules/spec/githubActions/component.test.ts b/src/rules/spec/githubActions/component.test.ts
index ba1f062b..fdd0c994 100644
--- a/src/rules/spec/githubActions/component.test.ts
+++ b/src/rules/spec/githubActions/component.test.ts
@@ -25,7 +25,7 @@ jobs:
       postgres:
         env:
           POSTGRES_PASSWORD: postgres
-        image: postgres:15.4-alpine
+        image: postgres
         options: >-
           --health-cmd pg_isready
           --health-interval 10s
diff --git a/src/rules/spec/githubActions/component.ts b/src/rules/spec/githubActions/component.ts
index faf6be7d..662d6f88 100644
--- a/src/rules/spec/githubActions/component.ts
+++ b/src/rules/spec/githubActions/component.ts
@@ -65,7 +65,7 @@ export const detectGithubActionsComponent: ComponentMatcher = async (
         for (const step of config.steps) {
           if (step.uses) {
             const [name, version] = step.uses.split('@');
-            dependencies.push(['githubAction', name, version]);
+            dependencies.push(['githubAction', name, version || 'latest']);
             const matched = matchDependencies([name], 'githubAction');
             if (matched.size > 0) {
               pl.addTechs(matched);
@@ -76,7 +76,7 @@ export const detectGithubActionsComponent: ComponentMatcher = async (
 
       if (config.container) {
         const [imageName, imageVersion] = config.container.split(':');
-        dependencies.push(['docker', imageName, imageVersion]);
+        dependencies.push(['docker', imageName, imageVersion || 'latest']);
         const matched = matchDependencies([imageName], 'docker');
         if (matched.size > 0) {
           pl.addTechs(matched);
@@ -89,7 +89,7 @@ export const detectGithubActionsComponent: ComponentMatcher = async (
             continue;
           }
           const [imageName, imageVersion] = service.image.split(':');
-          dependencies.push(['docker', imageName, imageVersion]);
+          dependencies.push(['docker', imageName, imageVersion || 'latest']);
           const matched = matchDependencies([imageName], 'docker');
           if (matched.size > 0) {
             pl.addTechs(matched);
diff --git a/src/rules/spec/golang/lockfile.ts b/src/rules/spec/golang/lockfile.ts
index d1565910..223de43c 100644
--- a/src/rules/spec/golang/lockfile.ts
+++ b/src/rules/spec/golang/lockfile.ts
@@ -40,7 +40,7 @@ export const detectGolangLockfile: ComponentMatcher = async (
         continue;
       }
 
-      dependencies.push(['golang', url, version]);
+      dependencies.push(['golang', url, version || 'latest']);
       const matched = matchDependencies([url], 'golang');
       if (matched.size <= 0) {
         continue;
diff --git a/src/rules/spec/ruby/lockfile.ts b/src/rules/spec/ruby/lockfile.ts
index 77127b4e..45ce8a94 100644
--- a/src/rules/spec/ruby/lockfile.ts
+++ b/src/rules/spec/ruby/lockfile.ts
@@ -36,7 +36,7 @@ export const detectRubyLockfile: ComponentMatcher = async (files, provider) => {
     const techs = matchDependencies(Object.keys(deps), 'ruby');
     const depsFlatten: Analyser['dependencies'] = Object.entries(deps).map(
       ([name, value]) => {
-        return ['ruby', name, value];
+        return ['ruby', name, value || 'latest'];
       }
     );