diff --git a/documentation.md b/documentation.md
index 6a24e5b..499790f 100644
--- a/documentation.md
+++ b/documentation.md
@@ -23,9 +23,12 @@
 ## features
 
  * command line
- * create reports in various formats from time tracking data stored on GitLab
+ * create reports in various formats from time tracking data stored on GitLab (issues and merge requests)
  * monitor the time you spent on an issue or merge request locally and syncs the data to GitLab
 
+### limitations
+
+ Time tracking for other work items (e.g. tasks, epics) is currently not supported. See also https://github.com/ndu2/gitlab-time-tracker/issues/33
 
 ## requirements
 
@@ -87,7 +90,7 @@ docker run \
        --rm -it \
        -v ~/.local/share/.gtt/:/home/gtt/.local/share/.gtt \
        gitlab-time-tracker:latest \
-       report "ourorganization/aproject" --user=xxxx --from="2020-04-01" --to="2020-06-30"
+       report "ourorganization/aproject" --user=xxxx --from="2020-04-01" --to="2020-07-01"
 ```
 
 
@@ -287,7 +290,7 @@ chromium --headless --run-all-compositor-stages-before-draw --print-to-pdf-no-he
 There are additional options for the invoice output as given in the following example:
 
 ```shell
-gtt report --output=invoice --file=invoice.md --from 2021-02-01 --to 2021-02-28 --closed  --invoiceCurrencyMaxUnit 1 --invoiceTitle "Rechnung" --invoiceReference "Reference" --invoiceAddress "Firma" "Mr. X" "Strasse" "10000 Ort" "Land" --invoiceCurrency "EUR" --invoiceCurrencyPerHour "50" --invoiceVAT "0.15" --invoiceDate "1.03.2021" --invoicePositionText "Position Text"
+gtt report --output=invoice --file=invoice.md --from 2021-02-01 --to 2021-03-01 --closed  --invoiceCurrencyMaxUnit 1 --invoiceTitle "Rechnung" --invoiceReference "Reference" --invoiceAddress "Firma" "Mr. X" "Strasse" "10000 Ort" "Land" --invoiceCurrency "EUR" --invoiceCurrencyPerHour "50" --invoiceVAT "0.15" --invoiceDate "1.03.2021" --invoicePositionText "Position Text"
 ```
 
 For paper invoice, further process the output with a css, see the folder preview (styles.css, invoice.pdf)
@@ -617,7 +620,7 @@ freeLabels:
  - at no charge
  - free
  
-# labels charing half price only
+# labels charging half price only
 halfPriceLabels:
  - at half price
  - at half-price
diff --git a/package-lock.json b/package-lock.json
index 3d16ca1..11cca80 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "gitlab-time-tracker",
-  "version": "1.8.0-snapshot",
+  "version": "1.8.1-snapshot",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "gitlab-time-tracker",
-      "version": "1.8.0-snapshot",
+      "version": "1.8.1-snapshot",
       "license": "GPL-2.0",
       "dependencies": {
         "@inquirer/select": "^4.2.3",
diff --git a/package.json b/package.json
index 2af31bf..f2f4a68 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gitlab-time-tracker",
-  "version": "1.8.0-snapshot",
+  "version": "1.8.2-snapshot",
   "type": "module",
   "description": "A command line interface for GitLabs time tracking feature.",
   "bugs": {
diff --git a/readme.md b/readme.md
index 870f0ae..8b5a4c9 100755
--- a/readme.md
+++ b/readme.md
@@ -31,6 +31,10 @@ By this time of writing:
 
 How to install and use gtt? You can find the documentation [here](documentation.md).
 
+### limitations
+
+Time tracking for other work items (e.g. tasks, epics) is currently not supported.
+
 
 ## license
 
diff --git a/src/models/hasTimes.js b/src/models/hasTimes.js
index dfd5c91..0bdedbe 100755
--- a/src/models/hasTimes.js
+++ b/src/models/hasTimes.js
@@ -4,9 +4,9 @@ import Base from './base.js';
 import Time from './time.js';
 import DayReport from './dayReport.js';
 
-const regex = /added (.*) of time spent(?: at (.*))?/i;
-const subRegex = /subtracted (.*) of time spent(?: at (.*))?/i;
-const delRegex = /deleted (.*) of spent time(?: from (.*))?/i;
+const regex = /added (.*) of time spent(?: at ([0-9-]*))?/i;
+const subRegex = /subtracted (.*) of time spent(?: at ([0-9-]*))?/i;
+const delRegex = /deleted (.*) of spent time(?: from ([0-9-]*))?/i;
 const removeRegex = /Removed time spent/i;
 
 /**
diff --git a/src/version.js b/src/version.js
index 95ab9d8..2f67589 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1 +1 @@
-let version = '1.8.0-snapshot'; export default version;
+let version = '1.8.2-snapshot'; export default version;