diff --git a/README.md b/README.md
index bdf871a..41c83be 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,6 @@ The following steps describe a simple, source-based installation.
 2. Install required packages
 
    Make sure you have at least:
-   - bash
    - openssl
    - nsupdate / bind-utils (for DNS-01 with Bind, if used)
    - curl or wget (depending on your ACME script)
@@ -182,9 +181,9 @@ dynTLS does not implement the ACME protocol itself. Instead, it delegates all AC
 
 In this repository, ACME-related scripts are placed under:
 
-- `contrib/acme/letsencrypt_master.sh`  
+- `contrib/acme/letsencrypt_master.sh`
   Upstream ACME client script (reference), unchanged or only minimally modified.
-- `contrib/acme/letsencrypt_master_local.sh`  
+- `contrib/acme/letsencrypt_master_local.sh`
   Local variant with customized `dns-01` challenge handling, for example using Bind/nsupdate, TSIG and `rndc` to manage internal DNS zones.
 
 Example configuration in `vars`:
@@ -198,7 +197,7 @@ set_var DYNTLS_DNS_SERVER "root-dns.example365.tld"
 set_var DYNTLS_DNS_TSIG   "/opt/dyntls/private/tsig.key"
 ```
 
-You can replace this with other ACME clients (e.g. acme.sh, lego) by pointing DYNTLS__LE_PROGRAM to your preferred script and ensuring its CLI options match your setup.
+You can replace this with other ACME clients (e.g. acme.sh, lego) by pointing DYNTLS_LE_PROGRAM to your preferred script and ensuring its CLI options match your setup.
 
 ## License
 
@@ -215,4 +214,4 @@ CB-601 - the open tec Elevator
 
 ## Project Home
 
-Project Home: <https://dev.town-square.de/cb601/dyntls>
\ No newline at end of file
+Project Home: <https://dev.town-square.de/cb601/dyntls>