diff --git a/README.MD b/README.MD
index ab54ccb..d5e7235 100644
--- a/README.MD
+++ b/README.MD
@@ -37,10 +37,10 @@ services:
 ## Tags
 
 ```
-michalhosna/adminer:4.7.7-en_v1
+michalhosna/adminer:4.8.1-en_v1
 ```
 
-- `4.7.7` = Adminer version
+- `4.8.1` = Adminer version
 - `en` = Adminer flavour (as in https://github.com/vrana/adminer/releases)
 - `v1` = Image version, when something else than adminer version in this repository changes 
 
diff --git a/src/Dockerfile b/src/Dockerfile
index 7cbf5d1..925057a 100644
--- a/src/Dockerfile
+++ b/src/Dockerfile
@@ -14,13 +14,14 @@ RUN apk add --no-cache \
     php7-pdo_odbc \
     php7-pdo_pgsql \
     php7-pdo_sqlite \
+    php7-pdo_dblib \
     php7-session
 
 WORKDIR /var/adminer
 
-ARG ADMINER_VERSION=4.7.0
+ARG ADMINER_VERSION=4.8.1
 ARG ADMINER_FLAVOUR="-en"
-ARG ADMINER_CHECKSUM="d2884278a3f331673c9fe58d3456db875a48270fd7b7ba37492d132b074d0eaa"
+ARG ADMINER_CHECKSUM="4ec36be619bb571e2b5a5d4051bfe06f3fcadb3004969b993f2535f6ce28116b"
 
 RUN curl -L https://github.com/vrana/adminer/releases/download/v${ADMINER_VERSION}/adminer-${ADMINER_VERSION}${ADMINER_FLAVOUR}.php -o adminer.php && \
     echo "${ADMINER_CHECKSUM}  adminer.php"|sha256sum -c -
diff --git a/src/php.ini b/src/php.ini
index b8a3c32..5e5080b 100644
--- a/src/php.ini
+++ b/src/php.ini
@@ -1,4 +1,7 @@
-memory_limit                    = 1G
-post_max_size                   = 1G
 upload_max_filesize             = 1G
+post_max_size                   = 1G
+memory_limit                    = 1G
+max_execution_time              = 600
+max_input_vars                  = 5000
+variables_order                 = "EGPCS"
 opcache.validate_timestamps     = 0