fix versions, update to latest vectorian

environment.yml

@@ -4,20 +4,20 @@ channels:
   - conda-forge
 dependencies:
   - python=3.7
-  - bokeh>=2.3.1
+  - bokeh==2.3.1
   - ipywidgets
   - widgetsnbextension
-  - faiss
-  - beautifulsoup4>=4.9
+  - faiss==1.7.0
+  - beautifulsoup4==4.9
   - pip
   - pip:
-      - vectorian>=0.8.3dev2
-      - sentence-transformers>=0.4
-      - jupyter_bokeh>=3.0.0
-      - opentsne>=0.6.0
-      - spacy>=3.0.0,<4.0.0
-      - spacy_sentence_bert>=0.1.2
-      - markdown>=3.3.4
-      - networkx>=2.5.1
-      - jp_proxy_widget
+      - vectorian==0.8.3dev3
+      - sentence-transformers==0.4
+      - jupyter_bokeh==3.0.0
+      - opentsne==0.6.0
+      - spacy==3.0.6
+      - spacy_sentence_bert==0.1.2
+      - markdown==3.3.4
+      - networkx==2.5.1
+      - jp_proxy_widget==1.0.10
       - https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.0.0/en_core_web_sm-3.0.0-py3-none-any.whl