diff --git a/README.md b/README.md
index 8d63927..1a9b6ae 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,14 @@ Insights Engineering
 
   _Default_: `repository`
 
+* `extra-deps`:
+
+  _Description_: Extra dependencies specified similarly as in the `DESCRIPTION` file, i.e. `"<package name> (<operator> <version>)"` where both `<operator>` and `<version>` are optional. Multiple entries are possible separated by `";"`.
+
+  _Required_: `false`
+
+  _Default_: `""`
+
 * `check-args`:
 
   _Description_: Optional value of `args` argument to `rcmdcheck::rcmdcheck` in form of a string with space as delimeter, e.g. `"--no-examples --no-tests"`.
diff --git a/action.yaml b/action.yaml
index 99ad9c6..e31d3ff 100644
--- a/action.yaml
+++ b/action.yaml
@@ -12,6 +12,10 @@ inputs:
     description: Directory where the checked package has been cloned.
     required: false
     default: "."
+  extra-deps:
+    description: Extra dependencies specified similarly as in the `DESCRIPTION` file, i.e. `"<package name> (<operator> <version>)"` where both `<operator>` and `<version>` are optional. Multiple entries are possible separated by `";"`.
+    required: false
+    default: ""
   check-args:
     description: Optional value of args argument to rcmdcheck::rcmdcheck in form of a string with space as delimeter, e.g. "--no-examples --no-tests".
     required: false
@@ -22,7 +26,7 @@ inputs:
     default: ""
   strategy:
     description: |
-      Strategy to test package dependencies. One of: min, release, max.
+      Strategy to test package dependencies. One of: min_isolated, min_cohort, release, max.
     required: true
   additional-env-vars:
     description: |
@@ -53,7 +57,7 @@ runs:
         echo ".libPaths(\" \", include.site = FALSE)" > .Rprofile
         export R_LIBS_SITE=" "
         export R_LIBS_USER=" "
-        Rscript ${GITHUB_ACTION_PATH}/script.R '${{ inputs.repository-path }}' '${{ inputs.build-args }}' '${{ inputs.check-args }}' '${{ inputs.strategy }}'
+        Rscript ${GITHUB_ACTION_PATH}/script.R '${{ inputs.repository-path }}' '${{ inputs.extra-deps }}' '${{ inputs.build-args }}' '${{ inputs.check-args }}' '${{ inputs.strategy }}'
       shell: bash
       env:
         GITHUB_PAT: "${{ inputs.github-token }}"
diff --git a/script.R b/script.R
index 2e59e36..80ecc93 100644
--- a/script.R
+++ b/script.R
@@ -14,17 +14,18 @@ install.packages(c("remotes", "cli"), quiet = TRUE, verbose = FALSE)
 remotes::install_github("insightsengineering/verdepcheck", quiet = TRUE, verbose = FALSE)
 remotes::install_github("r-lib/rcmdcheck#196", quiet = TRUE, verbose = FALSE) # TODO: remove when merged / linked issue fixed
 
-args <- commandArgs(trailingOnly = TRUE)
+args <- trimws(commandArgs(trailingOnly = TRUE))
 path <- normalizePath(file.path(".", args[1]))
-build_args <- strsplit(args[2], " ")[[1]]
-check_args <- strsplit(args[3], " ")[[1]]
-strategy <- strsplit(args[4], " ")[[1]]
+extra_deps <- args[2]
+build_args <- strsplit(args[3], " ")[[1]]
+check_args <- strsplit(args[4], " ")[[1]]
+strategy <- args[5]
 
 cli::cli_h1("Cat script parameters")
 catnl_param(path)
+catnl_param(extra_deps)
 catnl_param(build_args)
 catnl_param(check_args)
-catnl_param(strategy)
 
 cli::cli_h1("Execute verdepcheck...")
 fun <- switch(
@@ -35,7 +36,7 @@ fun <- switch(
     "max" = verdepcheck::max_deps_check,
     stop("Unknown strategy")
 )
-x <- fun(path, check_args = check_args, build_args = build_args)
+x <- fun(path, extra_deps = extra_deps, check_args = check_args, build_args = build_args)
 saveRDS(x, "res.RDS")
 
 cli::cli_h1("Debug output:")