diff --git a/src/parser-browsers.js b/src/parser-browsers.js
index e65dd79..ef24693 100644
--- a/src/parser-browsers.js
+++ b/src/parser-browsers.js
@@ -368,7 +368,7 @@ const browsersList = [
       const browser = {
         name: 'SlackBot',
       };
-      const version = Utils.getFirstMatch(/slackbot\/(\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(/slack-imgproxy\s+(\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);
+      const version = Utils.getFirstMatch(/(?:slackbot|slack-imgproxy)(?:-[-\w]+)?[\s/](\d+(\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);
 
       if (version) {
         browser.version = version;
diff --git a/test/acceptance/useragentstrings.yml b/test/acceptance/useragentstrings.yml
index 8093d68..1303411 100644
--- a/test/acceptance/useragentstrings.yml
+++ b/test/acceptance/useragentstrings.yml
@@ -2982,10 +2982,11 @@
            vendor: "Slack"
          engine: {}
      -
-       ua: "Slackbot 1.0(+https://api.slack.com/robots)"
+       ua: "Slackbot 1.0 (+https://api.slack.com/robots)"
        spec:
          browser:
            name: "SlackBot"
+           version: "1.0"
          os: {}
          platform:
            type: "bot"